Moderate
Tylomelania sp. yellow spot - Aquarium Snails
26–30°C · pH 7.5–8.5 · 40L
£18.99
One unsexed Spixi Snail (Asolene spixii) per quantity. Choose an approximate 1-1.5 cm or 2-2.5 cm dispatch grade for a mature, covered freshwater aquarium.
Asolene spixii
Spixi Snail live in groups — 6+ keeps them settled, active and showing their best colour.
One unsexed Spixi Snail (Asolene spixii) per quantity. Choose an approximate 1-1.5 cm or 2-2.5 cm dispatch grade for a mature, covered freshwater aquarium.
Maintain these water conditions for optimal health and vibrant colors
Spixi Snail is the established aquarium trade name for Asolene spixii, a South American freshwater apple snail with a rounded yellow-to-golden shell crossed by dark spiral bands. The accepted scientific spelling ends in two letters i. Supplier lists often shorten it to Asolene spixi; that familiar spelling refers to the same trade animal here, but it is not the current accepted species name.
This product offers two supplier size grades. Select approximately 1-1.5 cm for variant KJ24 or approximately 2-2.5 cm for variant KJ25. Each basket quantity supplies one unsexed live animal from the chosen grade. Quantity one is not a pair, colony or breeding group, and the dispatch band is not an exact measurement certificate. Shell size, colour, band width and maturity vary naturally.
This is an interesting feature mollusc rather than a guaranteed cleaning tool. It grazes and scavenges, but it may also investigate leftovers, carrion, soft plant tissue, eggs and very small snails. It should not be bought with a promise that it will eradicate nuisance snails, clear every kind of algae or remain harmless to every plant in every circumstance. A mature aquarium, planned feeding and measured mineral-bearing water are still required.
The gallery needs an unusually clear disclosure. The first image's long conical shell is not a dependable morphology reference for this rounded apple-snail species. The second image is the recovered, site-owned stock reference and is the image to use when judging the expected globose yellow-and-banded shell form. Neither image shows the exact individual that will be dispatched.
Increasing the basket quantity increases the number supplied. It does not turn the listing into a pair unless two are deliberately ordered, and even two cannot be promised as one male and one female. The live Shopify selector is the source of truth for the available size, price and stock at checkout.
The smaller grade is approximately 1-1.5 cm and the larger grade approximately 2-2.5 cm. These are dispatch grades, not species names and not guaranteed adult limits. Measurement can differ slightly with shell orientation, and growing livestock will not remain frozen at one number while it waits for dispatch.
Choose the species for its broad rounded, banded appearance rather than an exact copy of one photograph. Ground colour can range from pale yellow to warmer gold or tan, while band intensity and spacing differ. Prior shell marks cannot be selected remotely, and the new growth edge may look different from older whorls.
| Selection | What is supplied | What is not promised |
|---|---|---|
| KJ24 | One unsexed individual, approximately 1-1.5 cm | An exact 1.5 cm shell or a juvenile of a specified age |
| KJ25 | One unsexed individual, approximately 2-2.5 cm | A fully grown adult or known sex |
| Quantity 2 | Two animals from the selected grade | A male-female pair or compatible breeders |
| Gallery | Representative and disclosed reference media | The exact dispatched specimen |
GBIF accepts Asolene spixii. The shorter supplier spelling appears widely in trade feeds, but repeating an error for search visibility would weaken the page. This listing uses the accepted form in the title and care data while preserving the supplier wording in its private provenance record.
The species belongs to Ampullariidae. Its expected shell is rounded and inflated, with visible spiral banding. A long turreted shell is characteristic of a different body plan, which is why the retained first gallery illustration must not be treated as the identification image.
Published records place the species in South American freshwater systems, particularly south-eastern Brazil and the Paraná region. The exact farm, capture locality and breeding history of this supplier batch are not stated. The page therefore does not label the individual as wild-caught, captive-bred or locality-certified.
| Identity field | Evidence-led value |
|---|---|
| Accepted scientific name | Asolene spixii (d'Orbigny, 1838) |
| Trade/supplier spelling | Asolene spixi |
| Family | Ampullariidae |
| Order | Architaenioglossa |
| Freshwater distribution | South America, with records centred on south-eastern Brazil and the Paraná system |
| Batch provenance | Exact breeding or collection locality not supplied |
A credible individual has the compact, globose profile associated with an apple snail. The aperture is broad relative to the shell, and the spiral whorls do not create the tall, narrow tower seen in rabbit or trumpet types. That silhouette is more useful for recognition than expecting one fixed colour grade.
The US Fish and Wildlife Service summary describes a yellow shell crossed by dark-brown spiral stripes. Aquarium lighting, background, age and camera processing can make the same shell appear cream, olive, honey or deeper gold. Bands may be bold, broken, narrow or uneven without changing the sale unit.
Plan for a shell around 3.5 cm rather than assuming the dispatch grade is the final size. Published biological information is limited, so this is a practical planning figure, not a warranty that every animal stops at exactly 35 mm. Space must also account for movement, feeding surface and waste, not shell length alone.
The gallery image is a generated aquarium scene with a conical-shell animal. That shape is not a reliable depiction of A. spixii, so it must not be used to identify the stock or infer adult proportions.
The appended second image comes from the site-owned legacy product source and shows the rounded yellow shell with dark spiral bands expected for this listing. It has been optimised for a clearer storefront view without replacing the original provenance file. This is the stronger morphology reference.
Neither image is a photograph taken at packing time. The animal received can differ in size within the selected band, shell tone, stripe arrangement and existing wear. Media should help a customer recognise the product type; it cannot promise an identical living pattern.
| Gallery position | Purpose | Reliability boundary |
|---|---|---|
| Existing first image | Preserved generated media history | Conical shell is not a dependable species reference |
| Recovered second image | Rounded, banded stock-form reference | Representative rather than the exact dispatched individual |
| Product title | Controls identity | Accepted name takes priority over illustrative mistakes |
| Variant selector | Controls dispatch-size choice | Images are not measurement scales |
Reliable sources support freshwater habitat, a rounded yellow shell with dark spiral bands, nocturnal activity, hiding or burying, and underwater gelatinous egg masses. They also state that the biological literature is limited. The revised care page keeps those facts separate from shop-level husbandry judgement.
Tropical Fish Co recommends 22-26°C, pH 7.0-8.0 and 8-18 dGH as a stable practical window. These figures are not presented as a complete experimentally measured tolerance range. They are a cautious maintenance target for a shell-bearing tropical freshwater invertebrate.
The animal is not aggressive towards ordinary community fish, but its chemistry, food supply, copper sensitivity, escape prevention and opportunistic feeding need active management. Limited species-specific literature also makes categorical promises inappropriate. A prepared newer keeper may succeed; the word Moderate is more responsible than calling it effortless.
| Care field | Working value | Confidence note |
|---|---|---|
| Care level | Moderate | Editorial assessment based on the full husbandry burden |
| Temperament | Generally peaceful, opportunistic feeder | Does not mean harmless to eggs or every plant |
| Temperature | 22-26°C | Conservative maintenance target |
| pH | 7.0-8.0 | Keep stable and mineral-bearing |
| General hardness | 8-18 dGH | Measure rather than dosing minerals blindly |
| Ammonia and nitrite | 0 mg/l | Required in a cycled aquarium |
A suitable system is mature, filtered and covered, with stable mineral-bearing water, quiet retreat areas and a feeding plan. Tank mates should be too peaceful to bite or crush the soft body. The keeper should be comfortable testing water and removing uneaten food.
A newly filled tank, persistently acidic soft water, copper exposure, an open escape route or known mollusc predators are poor choices. A display expected to remain clinically spotless without supplementary feeding can also become unsuitable after the available surface growth is consumed.
This feature species may be selected for its banded shell and unusual behaviour. It should not be selected solely as a pest-control purchase. If the only acceptable result is complete algae removal, zero plant contact and no egg masses, an animal with opportunistic biology is the wrong tool for that expectation.
| Reasonable environment | Environment to avoid |
|---|---|
| Cycled aquarium with measured stable chemistry | Uncycled or recently sterilised setup |
| Moderate-to-hard neutral/alkaline water | Unmanaged very soft acidic water |
| Secure cover and protected equipment gaps | Open routes onto a dry floor |
| Peaceful companions with overlapping needs | Puffers, snail-eating loaches or predatory crustaceans |
| Natural films plus deliberate supplementary food | Expectation that visible algae feeds it forever |
| Keeper willing to observe plant and egg interactions | Need for a guaranteed plant-safe pest eradicator |
For one selected animal, use a mature aquarium about 45 cm long and approximately 40 litres or more. This is an editorial husbandry starting point, not a claim that litres alone create welfare. A larger tank is needed when fish, several substantial snails or heavy feeding increase demand.
Glass, smooth stone, wood and broad leaves create routes for grazing and exploration. Two aquariums with the same volume may offer very different surface area, oxygenation and retreat structure. A taller vessel with little usable hardscape is not automatically better because its litre figure is larger.
There is no evidence-based minimum group requirement for this listing. One may be kept singly in a suitable aquarium. Several can be housed where food, floor area, filtration and population planning allow, but adding more solely to create a social group is unnecessary.
Maintain 22-26°C as the practical display range. A 2025 aquarium thesis recorded breeding under 27°C conditions, but one breeding observation does not prove the outer limits of long-term tolerance. Avoid using that single number as a reason to run the aquarium hot.
Target pH 7.0-8.0 and approximately 8-18 dGH. The shell is calcium-carbonate based, but mineral management begins with tests rather than automatic additives. GH, KH and pH should be understood together; an unmeasured dose can cause a faster, more harmful shift than the condition it was intended to correct.
Ammonia and nitrite must remain at zero. Track nitrate against source water, stocking and maintenance rather than relying on one universal number detached from context. A sudden behavioural change should trigger a full water check even when the aquarium looks clear.
| Parameter | Practical target | How to use it |
|---|---|---|
| Temperature | 22-26°C | Keep stable; match replacement water reasonably |
| pH | 7.0-8.0 | Avoid rapid correction and persistent acidity |
| GH | 8-18 dGH | Verify mineral content before supplementation |
| KH | Measure and maintain suitable buffering | Interpret alongside pH rather than chasing a number |
| Ammonia | 0 mg/l | Any detection requires immediate investigation |
| Nitrite | 0 mg/l | Any detection means the system is not safely processing waste |
| Nitrate | Trend against the aquarium baseline | Control through stocking, feeding, plants and water changes |
Use the water parameter matcher to organise comparisons, then test the actual aquarium. UK tap water differs by supply zone and may change. A published target cannot make an abrupt transfer between two chemically different waters safe.
A new aquarium may look clean while lacking enough nitrifying bacteria to process waste. Confirm the cycle with repeated test results before livestock is ordered. Bottled bacteria, old water or a running pump are not substitutes for evidence that ammonia and nitrite are being converted reliably.
Biofilm develops on wood, rock, glass and plants over time. It is part of the grazing environment, but it is not a complete ration and should not be confused with neglect. Clean harmful waste while avoiding the simultaneous sterilisation of every surface and all filter media.
Even a modest invertebrate adds waste and requires food. Introduce additions conservatively, observe the filter response and retest. Ordering several animals at once because each shell is small can still overtake the available food and the aquarium's waste-processing margin.
Use a filter sized for the entire community and maintain it without replacing all mature media together. Rinse reusable media gently in removed aquarium water when necessary. Untreated chlorinated tap water can damage the bacterial population that the cycle depends on.
Maintain good gas exchange with appropriate flow at the surface. Apple snails have specialised respiratory biology, but access to the surface does not excuse low dissolved oxygen or failing filtration. If several inhabitants gather unusually near the top, check oxygen, temperature and chemistry promptly.
Current should circulate the aquarium without rolling the animal from glass or decor. Protect strong intakes that could trap a foot or small individual. Repeated falls deserve investigation: check flow, attachment, tank-mate harassment and water quality instead of simply placing it back each time.
The species is reported to hide and bury. Fine sand or smooth, manageable gravel can support that behaviour, provided the substrate suits all tank inhabitants and is kept free from compacted waste. Avoid sharp metal fragments, flaking ornament and unknown decorative materials.
Wood, stone arches and plant cover create shaded resting places. A hidden individual is not necessarily lost or dead, especially after transport or during the light period. Know where decor creates safe cavities so that an animal cannot become permanently trapped.
Use a close-fitting lid and check gaps around pipes, cables and filters. Do not seal the aquarium without normal air exchange. Exploration near the waterline can occur, but repeated attempts to leave should prompt checks of chemistry, oxygen, food and aggression.
The animal can rasp soft growth and microbial films from submerged surfaces. That activity is useful, but no individual reliably eats every algae type. Tough filamentous growth, hard spots or chemically defended plants may be ignored while softer food is selected.
Offer a reputable sinking invertebrate food, algae wafer or quality omnivore tablet when natural resources are insufficient. Small portions of prepared vegetable may be trialled, provided they are pesticide-free and removed before decay. A varied ration is safer than expecting one wafer to cover every nutrient.
Fish, shrimp and other bottom feeders may take food first. Place a controlled portion where this animal can reach it and observe after lights dim if needed. Remove persistent leftovers; decomposing food raises waste and is not a substitute for a planned scavenger diet.
| Food source | Useful role | Important limit |
|---|---|---|
| Established biofilm | Natural foraging and grazing | Supply changes and may not meet the full diet |
| Soft algal growth | Can be consumed from hard surfaces | Not every algae type is palatable |
| Quality sinking invertebrate food | Controlled supplementary ration | Confirm access and remove excess |
| Algae or omnivore wafer | Convenient dietary support | Choose an invertebrate-safe product; vary the diet |
| Prepared vegetable | Optional occasional trial | Use clean food sparingly and remove uneaten pieces |
| Fish eggs, carrion or tiny snails | Possible opportunistic food | Reason not to promise complete harmlessness |
Many keepers house this species in planted aquaria, and established healthy leaves may remain untouched. That normal outcome is not a guarantee. Hunger, soft tissue, damaged leaves and individual behaviour can change what is investigated, so the old blanket plant-safe wording has been removed.
A hole beside a mollusc does not prove that the animal created it. Nutrient deficiency, melting after planting, physical handling, fish grazing and decay can all damage leaves. Look for direct observation, the type of edge and whether only deteriorating tissue is affected.
Use lighting control, nutrient balance, manual removal and maintenance to address unwanted growth. Livestock may contribute but should never carry the whole management plan. Once surfaces become cleaner, the need for supplementary food can increase rather than disappear.
Some hobby reports describe interaction with other small snails or their eggs. That does not support a promise that one individual will eliminate a population. Reproduction by bladder, ramshorn or trumpet types is usually driven by available food, so feeding and waste control remain central.
An omnivorous scavenger may consume eggs, weak animals or accessible soft tissue without actively hunting every healthy adult. Behaviour can vary between individuals and tanks. Protect valuable breeding projects rather than testing an uncertain appetite on fry, eggs or rare small invertebrates.
Reduce excess feeding, remove trapped debris and inspect plant imports if unwanted snails are increasing. A biological shortcut that adds another animal can increase waste without removing the underlying resource. Mechanical removal and disciplined husbandry produce a more controllable result.
One can be maintained without a claimed social deficit where its environmental needs are met. This product is therefore sold singly by quantity. The absence of a group minimum does not reduce the need for space, food, stable chemistry and daily observation.
Several can share a suitable aquarium if each has enough foraging area and supplementary food. Increase capacity for waste and provide more than one retreat. Do not assume that larger numbers guarantee compatible sexes or create a planned breeding group.
Tank volume already occupied by fish, shrimp and other snails cannot be allocated again. Consider adult sizes, oxygen demand, feeding overlap and treatment restrictions. A 40-litre baseline for one does not mean a simple formula of one additional animal per 40 litres.
Small peaceful community fish can work where temperature, pH and hardness overlap. Choose species that will not nip the exposed foot or repeatedly turn the shell. Calm behaviour at the shop does not replace research into adult feeding and mouth size.
Avoid puffers, snail-eating loaches and fish large or specialised enough to crush or pull a mollusc from its shell. Predatory crustaceans also present a serious risk. A heavy shell is protection, not immunity from repeated attack.
Fast bottom feeders may clear sinking food before a slow-moving animal reaches it. Feed in more than one location where appropriate and confirm consumption. Increasing the amount indiscriminately can create pollution while the intended recipient still goes hungry.
| Tank-mate type | Starting assessment | Condition |
|---|---|---|
| Peaceful small community fish | Often suitable | Match chemistry, adult size and feeding pace |
| Calm livebearers | Potentially suitable | Hardness overlap and total stocking must work |
| Large adult shrimp | Case by case | Protect breeding projects and monitor food competition |
| Tiny shrimp or recently hatched young | Use caution | Opportunistic feeding cannot be excluded |
| Puffers or snail-eating loaches | Avoid | Predation and injury risk |
| Crayfish and predatory crabs | Avoid | Can capture or damage the soft body |
Adult shrimp may coexist in a spacious, well-fed aquarium, but no blanket guarantee is made for eggs, hatchlings or weak individuals. Both groups are sensitive to unsuitable medication, and both may compete for sinking food. Breeding projects deserve a more conservative separation plan.
Compare adult size, temperature, food and mineral requirements before mixing types. A Rabbit Snail, Pagoda Snail or Orange Rabbit Snail has a different shape and care emphasis; visual similarity in a shop category is not enough.
The Horned Nerite Snail is a smaller patterned alternative with different reproductive and feeding expectations. Compare the exact page rather than treating every member of the freshwater snail shop as interchangeable.
Ampullariids have separate sexes, but this listing does not offer visual sex selection. Ordering one gives no breeding expectation. Ordering two or more still cannot guarantee both sexes, maturity, mating or fertile eggs.
Condition, sex ratio, maturity and environment all affect reproduction. The product is not sold as a proven pair or culture. A customer seeking a managed breeding project should prepare a separate system and accept that the selected stock may not produce offspring.
Studies of Asolene platae and Asolene pulchella help explain genus-level reproductive themes, but they cannot be copied as exact lifespan, clutch or incubation guarantees for A. spixii. This page labels related evidence instead of quietly turning it into species fact.
The old product copy said that eggs were deposited above the waterline. That was incorrect for this species. The US Fish and Wildlife Service summary describes gelatinous egg masses laid underwater, matching the subaquatic pattern reported for related Asolene.
A gelatinous mass may be attached to submerged hardscape, glass, plants or equipment. Do not confuse it with the hard pale capsules associated with nerites or with the aerial clutches of some other apple snails. Identification should consider the whole aquarium and its inhabitants.
If eggs appear, avoid moving them into untested conditions or dosing the display. Whether to leave, isolate or remove a clutch depends on the keeper's population plan and ability to rear young. This listing does not provide a guaranteed incubation recipe.
| Reproductive point | Accurate expectation |
|---|---|
| Sex | Separate sexes; supplied unsexed |
| Quantity two | Does not guarantee a pair |
| Egg position | Underwater, in a gelatinous mass |
| Breeding condition report | One 2025 observation reported 27°C and pH 7.5; not a full tolerance range |
| Hatching and survival | Not guaranteed by purchase or by the appearance of eggs |
| Population responsibility | Prepare space and a humane plan before deliberate breeding |
Know whether the aquarium has room for juveniles and whether a separate grow-out system exists. Do not deliberately encourage reproduction first and search for homes later. The needs of each new animal include food, mineral stability, filtration capacity and long-term placement.
Do not release adults, eggs, plants, substrate or aquarium water into ponds, drains or natural waterways. Non-native freshwater organisms can damage ecosystems and may be regulated. Unwanted livestock requires a responsible keeper-to-keeper, retailer or veterinary discussion.
Population pressure is easier to prevent than reverse. Avoid excessive feeding, inspect the tank for clutches and keep accurate stock numbers. Introducing a predator creates another welfare obligation and may not target only the intended animals.
Test temperature, pH, GH, KH, ammonia, nitrite and nitrate before checkout. Confirm the filter, heater and lid are reliable and that no recent treatment threatens invertebrates. Do not order first and plan a new aquarium around the parcel's arrival day.
Eligible UK livestock orders are covered under the current Live Arrival Guarantee and delivery guidance. Read the postcode, timing and evidence conditions before ordering. The guarantee protects the delivery process under its terms; it does not make an incompatible aquarium suitable.
Eligible first-time customers may use WELCOME10 for 10% off under the current checkout terms. A discount should never be used to add more livestock than the aquarium can support. Choose the correct size variant and quantity first.
| Stage | Action | Avoid |
|---|---|---|
| Before checkout | Verify cycle, chemistry, lid and tank mates | Buying for an unprepared aquarium |
| On dispatch notice | Arrange prompt receipt and reduce avoidable delay | Leaving a livestock parcel unattended |
| On arrival | Inspect externally and follow current delivery instructions | Opening or discarding evidence before checking policy conditions |
| Acclimation | Compare water and use the guided process | Mixing transport water into the display unnecessarily |
| First placement | Use a stable submerged surface near cover | Dropping the shell or forcing immediate activity |
Temperature and chemistry differences determine how cautious the transfer must be. Follow the current livestock instructions and use the acclimation timer as a pacing aid. A timer organises actions; it cannot measure pH, hardness or ammonia for you.
Use clean, dedicated aquarium tools and avoid pouring unnecessary bag water into the display. Do not share nets, tubs or towels with medicated systems unless they have been made safe. Household soap and cleaning residues are also dangerous to aquatic invertebrates.
Set the animal upright on a stable submerged surface rather than dropping it through the water. Allow time for attachment. Repeatedly pulling at the foot or operculum to test life can injure a stressed arrival and delays normal settling.
Temporary inactivity or hiding can follow transport, especially during bright periods. Published accounts describe nocturnal and burying behaviour, so absence from open glass is not automatically a loss. Observe at different times without dismantling the aquarium repeatedly.
Check ammonia, nitrite, temperature and pH after introduction, then follow the normal schedule. If the animal remains inactive, add GH, KH, oxygenation and contaminant review. Do not medicate before identifying whether the environment is the cause.
A clean tank may need supplementation sooner than expected. Offer a modest sinking food after settling and check whether fish remove it. Record what was offered and remove excess rather than adding several competing products at once.
Use test trends to set an appropriate routine. Treat tap water for chlorine or chloramine and match temperature reasonably. A large emergency correction caused by neglected maintenance is more stressful than regular, measured partial changes.
Service the filter when flow declines or waste accumulates, but do not replace every biological component together. Keep a record of media changes. If medication, power loss or chlorine exposure may have damaged the bacteria, test as though the cycle is at risk.
Siphon decaying food and concentrated debris while retaining useful established surfaces. Scraping every panel, boiling all decor and washing the filter on the same day removes much of the animal's grazing environment and may destabilise biological processing.
| Routine | Check | Reason |
|---|---|---|
| Daily | Attachment, movement, escapes, obvious injury and food remains | Finds acute problems early |
| Weekly | Temperature, pH, ammonia, nitrite, nitrate and shell trend | Shows environmental direction |
| Regularly | GH and KH, especially after source-water or remineralisation changes | Protects shell conditions and buffering |
| Water change | Treatment, temperature and volume | Prevents chlorine and chemistry shock |
| Filter service | Flow and media condition | Maintains oxygenation and biological capacity |
| After feeding | Actual access and persistent leftovers | Prevents starvation and pollution |
Old pits, pale areas or worn growth do not vanish after one week in better water. Watch whether new growth appears sound and whether deterioration continues. Photographing the same angle periodically can be more informative than relying on memory.
Resting, burying and night activity can be normal. Prolonged non-attachment, repeated falls, tissue deterioration, a foul smell or coordinated distress in several inhabitants requires urgent investigation. Test the environment before assuming one specific disease.
Use only products whose label and professional guidance confirm suitability for the exact invertebrates present. Copper-containing treatments can be dangerous to molluscs, and residues may move on nets or decor. A separate treatment system is often safer, but veterinary advice should guide disease care.
| Observation | Possible context | First response |
|---|---|---|
| Shell erosion or chalking | Past/current acidity, low mineral content or damage | Check pH, GH, KH and source-water history |
| Long inactivity | Normal rest, transport, poor water, starvation or illness | Check attachment, smell, chemistry, temperature and food |
| Repeated surfacing or escape | Exploration or environmental stress | Secure the lid; test oxygen and water |
| Repeated falling | Weakness, strong current, harassment or unsuitable surface | Place upright and investigate the cause |
| Plant marks | Decay, deficiency, physical damage or feeding | Observe directly and review diet and plant health |
| Underwater gelatinous mass | Possible eggs | Identify before moving or treating anything |
Available species-specific literature does not support a confident retail promise such as "lives exactly three years". Related Asolene research shows that members of the genus can have substantial life histories, but a different species under laboratory conditions is not a warranty for this stock.
The size grade does not reveal a verified hatch date. Growth depends on age, food, temperature, minerals and prior conditions. A larger variant is not automatically old, sexable or ready to breed, and a smaller one is not guaranteed to reach a particular size on a timetable.
Buy only if the aquarium and keeper can support long-term care. Future moves, medication needs and population changes should be considered. A feature invertebrate remains a welfare responsibility after the initial algae or novelty has faded.
Rabbit types have elongated shells and can differ in adult size, activity and feeding. They are visually very different from the rounded animal on this page. The gallery's inaccurate conical illustration should not be used as a reason to treat the two groups as the same.
Nerites are often selected primarily for surface grazing and have a different reproductive pattern in ordinary freshwater displays. They may leave hard pale capsules rather than an underwater gelatinous mass. Exact species requirements still vary.
Compare chemistry, adult planning size, feeding, egg expectations and tank mates before colour. Browse the freshwater molluscs category for structured comparison, then return to the exact product pages for evidence and variant details.
| Feature | Spixi | Rabbit-type option | Horned nerite option |
|---|---|---|---|
| General shell profile | Rounded, spiral-banded | Long and conical | Small, rounded, sometimes horned |
| Feeding emphasis | Omnivorous grazing and scavenging | Species-specific grazer/scavenger care | Strong surface-grazing emphasis |
| Egg expectation | Underwater gelatinous masses | Varies by exact type | Hard capsules may appear; recruitment is difficult in ordinary freshwater |
| Plant promise | No absolute guarantee | No absolute guarantee | Normally selected as grazer, still no universal warranty |
| Best reason to choose | Banded feature shell and unusual behaviour | Distinctive elongated feature form | Small patterned surface grazer |
GBIF supports the accepted name and classification. The US Fish and Wildlife Service summary compiles distribution, appearance, behaviour and reproductive location while openly noting limited literature. Those points form the factual core rather than hobby repetition.
Research on A. platae and A. pulchella is useful context for subaquatic reproduction and life-history complexity. It is not silently converted into an exact clutch size, incubation period or lifespan for the animal sold here.
The temperature, pH, hardness and tank-size targets are conservative shop recommendations designed to reduce risk. They are not represented as the full ecological limits of the species. This distinction makes the care advice more useful and more honest.
References: GBIF species record for Asolene spixii; USFWS Ecological Risk Screening Summary; identified shell reference on Wikimedia Commons; related Asolene platae life-history study.
Select 1-1.5 cm or 2-2.5 cm according to the live variant control. Larger is not automatically easier, sexable or mature. Check that the final basket shows the intended variant and quantity before payment.
Confirm a mature aquarium of about 45 cm and 40 litres or more, measured compatible water, safe tank mates, a secure lid and a feeding plan. Ensure no recent medication or shared equipment creates an invertebrate risk.
Use the rounded, banded recovered image for species form. Do not rely on the preserved conical illustration, and do not expect either picture to match the exact dispatched shell. The title, variant selector and live product controls define the purchase.
| Before adding to basket | Confirmed? |
|---|---|
| I understand quantity one supplies one unsexed animal | Yes / not yet |
| I selected either approximately 1-1.5 cm or 2-2.5 cm | Yes / not yet |
| My aquarium is mature, covered and approximately 40 litres or larger | Yes / not yet |
| Temperature, pH, GH, KH, ammonia and nitrite have been checked | Yes / not yet |
| Tank mates are not known mollusc predators | Yes / not yet |
| I have a supplementary feeding and population plan | Yes / not yet |
| I understand the first image is preserved but morphologically unreliable | Yes / not yet |
| I have read the delivery and acclimation guidance | Yes / not yet |
One unsexed live animal is supplied per selected quantity. Order two only if the aquarium supports two; the order will not be sexed as a pair.
Choose approximately 1-1.5 cm or 2-2.5 cm from the live variant selector. The number is a dispatch grade with natural variation, not an exact certificate.
The accepted scientific name is Asolene spixii. The single-final-i form is a common supplier and search spelling retained only as provenance and synonym context.
No. Opportunistic feeding on eggs or tiny animals may occur, but complete pest eradication is not promised. Control excess food and remove unwanted animals directly.
No absolute warranty is possible. Many planted systems work well, but soft, damaged or hungry-accessible tissue may be investigated. Provide a complete diet and monitor the actual leaves.
No evidence-based social minimum is asserted. One may be kept in a suitable aquarium; several require additional space, food and filtration capacity.
Use 22-26°C, pH 7.0-8.0 and 8-18 dGH as conservative practical targets, with zero ammonia and nitrite and stable buffering.
This species lays gelatinous egg masses underwater. The old statement about aerial clutches was incorrect and has been removed.
No. The stock is unsexed, and ordering several does not guarantee a male-female combination or breeding success.
Use the recovered rounded yellow-and-banded image as the morphology reference. The first conical generated image is preserved for media history but is not reliable for identification.
Plan around a shell of approximately 3.5 cm while allowing individual variation. The selected 1-1.5 or 2-2.5 cm band describes dispatch size, not the adult limit.
Not for an uncycled first-day setup. It can suit a prepared keeper who has a mature covered aquarium, tests water, manages minerals and food, and understands its opportunistic behaviour.
Buy this animal for its rounded banded shell and fascinating freshwater behaviour, with realistic expectations about feeding, plants, eggs and media. A stable mature aquarium and an observant keeper matter more than any cleaning claim.
26–30°C · pH 7.5–8.5 · 40L
25–28°C · pH 7.5–8.5 · 60L
22–26°C · pH 7–8 · 20L
18–26°C · pH 6.5–8 · 30L
23–27°C · pH 7.4–8.4 · 1000L
20–24°C · pH 7–8 · 45L
24–28°C · pH 6.5–7.5 · 2000L
24–28°C · pH 5.5–7 · 60L
22–26°C · pH 6–7.5 · 60L
24–28°C
24–28°C · pH 7.5–8.5 · 500L
28–30°C · pH 5.5–7.5 · 300L
22–26°C · pH 6–7.5 · 150L
22–26°C · pH 6–7.5 · 200L
22–28°C · pH 7–8.5 · 10L
23–27°C · pH 5.5–7.5 · 80L
