Difficult
L046 Hypancistrus zebra
26–30°C · pH 6–7.5 · 80L
£243.99
One unsexed L236 Pleco (Hypancistrus seideli), basic grade, in the selected approximate 3.5 cm or 4-5 cm size. Plan for about 15 cm adult length, a mature 100 cm aquarium of roughly 160 litres or more, warm oxygen-rich water and secure caves. Four existing stylised representative gallery images are preserved; actual pattern, sex and size vary.
Hypancistrus seideli
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One unsexed L236 Pleco (Hypancistrus seideli), basic grade, in the selected approximate 3.5 cm or 4-5 cm size. Plan for about 15 cm adult length, a mature 100 cm aquarium of roughly 160 litres or more, warm oxygen-rich water and secure caves. Four existing stylised representative gallery images are preserved; actual pattern, sex and size vary.
26–30°C · pH 6–7.5 · 80L
26–30°C · pH 6–7.5 · 100L
22–28°C · pH 6–7.8 · 400L
22–27°C · pH 6–7.5 · 80L
Maintain these water conditions for optimal health and vibrant colors
L236 Pleco - Basic Grade (Hypancistrus seideli) is a compact-looking but substantial warm-water catfish with pale and dark vermiculated patterning. The L236 designation remains valuable to aquarists because it identifies a familiar trade form, while a peer-reviewed taxonomic revision published in 2025 now places L236 within the valid species Hypancistrus seideli. This page uses both names so buyers can match current science with the wording still used by breeders, shops and search results.
This listing supplies one unsexed fish in the selected approximate size. The available size options are approximately 3.5 cm and 4-5 cm. These are juvenile dispatch sizes, not adult planning sizes, and exact length is not guaranteed. The supplier calls this the basic grade. That is a commercial pattern grade, not a scientific subspecies, locality or promise of Super White or RB patterning.
Plan for an adult of about 15 cm total length, not the old 8 cm figure previously shown on this page. A mature fish needs a long, established aquarium with clean warm water, high dissolved oxygen, secure caves and a feeding routine that reaches a shy bottom-dweller after lights dim. Use a tank around 100 cm long and roughly 160 litres or more for one adult or a carefully matched pair, with more footprint, filtration and shelters for a group.
| Current accepted name | Hypancistrus seideli Sousa et al., 2025 |
|---|---|
| Trade identity | L236 Pleco or Cracked Zebra Pleco, supplier-labelled basic grade |
| What one quantity supplies | One unsexed live fish in the selected approximate size |
| Current size options | Approximately 3.5 cm or 4-5 cm; exact dispatch length is not guaranteed |
| Adult planning size | About 15 cm total length; the 2025 type series reached 150.2 mm TL |
| Long-term aquarium | Around 100 cm long and roughly 160 litres or more for one adult or a carefully matched pair; larger for a group |
| Temperature | About 26-29 C with strong oxygenation and stable conditions |
| Water | Approximately pH 6.0-7.5, 2-12 dGH, zero ammonia and nitrite |
| Diet | Varied sinking omnivore diet with a substantial animal-food component and measured plant or biofilm variety |
| Care level | Intermediate to advanced; warm water, oxygen, caves, feeding access and territorial behaviour need active management |
| Gallery | Four preserved stylised representative illustrations, not WYSIWYG photographs |
One product quantity means one live L236 Pleco. It does not mean a pair, breeding pair, group, sexed fish or fish chosen to match one of the gallery scenes. Select the available size option and quantity required. If a group is planned, calculate the adult footprint, cave count and filtration before ordering rather than adding several juveniles to a tank designed only for their present length.
The size labels are approximate supplier bands. A fish sold as 3.5 cm or 4-5 cm may measure slightly differently by dispatch because living fish grow, posture changes and supplier measurements are not laboratory measurements. The option describes the current batch, not a permanent maximum. The 4-5 cm option may also be unavailable while the smaller option remains in stock; Shopify shows availability for each option separately.
Sex is not guaranteed at these sizes. Mature males and females can develop useful differences in head shape, body width and odontodes, but small juveniles should not be sold on a confident visual sex claim. A random order cannot promise a desired sex ratio. Anyone planning a breeding group should expect to grow the fish, identify mature individuals later and provide spare accommodation if the eventual balance is unsuitable.
The supplier uses the word basic to distinguish this commercial grade from costlier L236 selections. It does not mean poor health, easy care or a scientifically separate fish. It also does not guarantee a fixed percentage of white, a particular line width, breeder, locality or generation. Pattern grading is subjective, and the markings can change as the fish grows.
Older aquarium references list this fish as Hypancistrus sp. L236 because the L-number was introduced before a formal species name was available. That history changed in 2025. A peer-reviewed revision described Hypancistrus seideli and treated L236, L66, L287, L333, L399 and L400 as popular trade morphotypes within the species. The accepted record is also listed by the California Academy of Sciences Catalog of Fishes.
The primary 2025 description of Hypancistrus seideli matters for care as well as naming. It documented a substantially larger adult than older hobby summaries, extensive pattern variation, a broad lower-Xingu distribution and rock habitats across a wide range of depths and currents. It also makes clear that a single photo or line pattern is not enough to invent a precise locality.
The L236 label remains useful. It tells a buyer which historic trade form and grading market the supplier intends. The scientific name tells a buyer how current taxonomy interprets that form. A responsible listing keeps both without pretending that basic is Latin, that every L-number is still an undescribed species, or that all individuals sold under one grade will look identical.
For search and record keeping, write the fish as L236 Pleco (Hypancistrus seideli), basic grade. Keep the purchase record with the aquarium. If fish are later exchanged, pass on the L-number, accepted species name, grade and the fact that no locality or pedigree was supplied.
Cracked Zebra Pleco is a common English trade name for L236. It describes the broken or vermiculated contrast pattern and does not make the fish the true Zebra Pleco, Hypancistrus zebra L046. The true L046 Zebra Pleco has its own identity, distribution, conservation context and much straighter bold striping. Do not shorten this listing to Zebra Pleco without the L236 or Cracked qualifier.
Super White, SW and RB are separate commercial grade or breeding-line intents within the L236 market. Those words usually indicate stronger white coverage or a selected line and often command very different prices. This product is supplier-labelled basic. The separate L236 RB Line listing should be assessed on its own stock description and availability. Buying this basic-grade fish does not include an upgrade to RB or Super White.
Pattern changes with age and differs among individuals. The 2025 species description reports that juveniles can carry thicker, less wavy pale lines, while larger specimens may develop thinner, more numerous and more reticulated markings. Pale areas may appear white, cream, yellowish or even slightly pinkish in life. Lighting, background, stress, nutrition and camera processing also alter the way contrast looks.
This variation is part of the fish, not a defect that can be judged from one stylised image. A 2025 morphometric study of Xingu Hypancistrus further illustrates why appearance alone should not support confident claims about lineage, purity or collection site. The safe retail promise is the supplier's L236 basic identity, selected size and live-fish condition at dispatch.
Hypancistrus seideli is recorded from the lower Rio Xingu system in Para, Brazil, from the lower end of the Volta Grande towards the river's meeting with the Amazon. Historic hobby accounts often linked L236 specifically with the Rio Iriri. The modern species account covers a wider lower-Xingu distribution, and this retail stock has no documented locality. The page therefore does not market it as a Rio Iriri line.
Wild specimens occupy rock habitats. The primary description records fish from less than one metre to around 40 metres deep, among granitoid boulders and sedimentary rocks, in both strong-current areas and slower lower-river water. This does not translate into one rigid aquarium flow number. It does support a mature, highly oxygenated system with stable rock-like shelters, clean surfaces and enough current to prevent dead zones without pinning a juvenile against the glass.
Use the natural history to shape the aquarium rather than trying to copy a river photograph literally. Provide solid caves and crevices, shaded resting places, clear routes between shelters and open water where waste can be removed. A powerful filter is useful only when its intake is safe and its return creates usable circulation. Surface movement and oxygen transfer are more important than making the fish fight a narrow jet.
The species' broad habitat range helps explain why captive lines may tolerate different stable water chemistries. It does not mean they tolerate ammonia, oxygen shortage, abrupt temperature changes or neglected maintenance. Warm water holds less oxygen, and a bottom fish resting inside a cave can be the first animal affected when gas exchange fails.
The 2025 type series measured specimens to 116.5 mm standard length and 150.2 mm total length. Standard length excludes the caudal fin, while total length includes it. For practical aquarium planning, use about 15 cm total length and allow for a robust head, fins, cave territory and turning space.
A tank around 100 cm long and roughly 160 litres or more is a sensible baseline for one adult or a carefully matched pair. A footprint close to 100 x 40 cm gives much more usable bottom area than a tall narrow tank with the same volume. Measure the real internal dimensions and use the aquarium volume calculator before stocking. Substrate, rocks, wood and internal equipment reduce the water volume printed on the box.
For several adults, move to a longer and wider aquarium, commonly 120 cm or more, and increase volume, filtration and shelter count. Group capacity is determined by floor area and territory as much as litres. Six caves do not make six adults safe if all entrances face one small patch or one dominant fish can block the only feeding lane.
Juveniles can be observed temporarily in a smaller quarantine or grow-out system when water quality, feeding and shelter are closely managed. Temporary accommodation is not the long-term recommendation. Plan the adult tank before purchase so growth does not create an urgent move, and avoid stacking unstable stonework merely to add more caves.
Every fish needs access to a secure shelter, with at least one extra cave when more than one pleco is kept. Use smooth ceramic caves, slate structures or stable rock crevices sized so the fish can enter, turn or back out without becoming trapped. Mature breeding males may prefer a snug cave, but the general display should also include broader refuges for juveniles and non-breeding fish.
Place cave entrances in different directions and break sight lines with wood or rock. This creates separate territories instead of one row that a dominant fish can patrol. Check each structure by hand before filling the tank. Heavy stone must rest securely, not on loose sand where digging or maintenance can undermine it. Leave a clear route for a siphon so uneaten protein-rich food does not decay behind decor.
Fine sand or smooth gravel can work. Avoid sharp material that can abrade the belly or mouth. Plants are optional and should be chosen for warm water, moderate flow and lower light. Attach hardy epiphytes safely without fishing line or exposed wire. Wood can provide shade and biofilm, but this Hypancistrus is not a wood-eating Panaque or Panaqolus; wood is habitat, not a complete diet.
A tight lid is sensible around filter pipes and cables. Dim areas encourage normal emergence, but the tank still needs a regular day-night cycle. Rather than keeping the aquarium permanently dark, provide shaded caves and use moderate lighting that allows the keeper to inspect appetite, respiration, skin and body condition.
A practical routine temperature is about 26-29 C. Specialist L236 records often extend to 30 C, but the warmest end should never be separated from oxygen management. As temperature rises, water carries less dissolved oxygen while fish metabolism and biological demand increase. Use a reliable thermometer, strong surface movement and supplementary aeration where needed.
A pH around 6.0-7.5 and soft to moderately hard water around 2-12 dGH form a useful captive range. The water matcher can identify an obvious mismatch before ordering. Do not chase the lower pH with unmeasured acids, and do not assume very soft water is automatically clean or stable. Match any remineralisation method consistently and test the prepared water before a change.
Ammonia and nitrite must remain at zero. Keep nitrate controlled at a level appropriate to the established aquarium through stocking, feeding, plants where suitable and regular partial changes. Temperature, pH and hardness should change gradually. A fish can tolerate a value within a broad species range yet still be harmed by a rapid swing to that value.
Watch respiration inside as well as outside caves. Persistent rapid gill movement, repeated trips to the surface, unusual daytime exposure or a fish leaving a preferred cave can indicate low oxygen or deteriorating water. Check temperature, aeration, filter flow, ammonia and nitrite immediately. Warm-weather power interruptions need an air-pump plan.
Use mature biological filtration with enough mechanical capacity for the adult biomass and the chosen feeding plan. Canister filters, sumps and large internal systems can all work when safely installed. Protect intakes from small juveniles, distribute return flow across the aquarium and keep an air stone or battery air pump available. The filter should create circulation through the layout, not leave warm stagnant pockets behind caves.
Perform regular partial water changes with dechlorinated water matched for temperature and chemistry. The exact volume and frequency depend on nitrate, feeding, stocking and source water, so test rather than copying one dramatic percentage. A consistent weekly routine is a reasonable starting framework, with additional smaller changes for heavily fed grow-out or breeding systems.
Siphon leftover food and waste from cave approaches. Rinse mechanical media before it blocks, while preserving biological media according to the filter manufacturer's guidance. Never replace all mature media at once. Check that every return and air line still works after maintenance, because warm pleco tanks can lose oxygen quickly when flow is reduced.
Keep a written baseline for temperature, pH, hardness and nitrogen tests. When a fish looks wrong, compare measurements with that established baseline before medicating. Clean water, oxygen and feeding access solve many husbandry problems that are otherwise mistaken for a disease requiring chemicals.
L236 should not be bought to clean algae from the aquarium. Hypancistrus species are dietary generalists with feeding differences between species and populations, and hobby sources have historically disagreed over how meat-heavy L236 should be. The safest captive approach is a varied sinking omnivore diet with a substantial animal-food component, some plant or biofilm variety and close observation of body condition.
Use a high-quality complete sinking pellet or tablet as the nutritional base. The sinking pleco tablets can form part of a rotation, but no single food should be assumed perfect for every batch. Add measured frozen invertebrate foods such as frozen Artemia, suitable bloodworm, mysis or finely chopped mollusc where appropriate. Include a smaller plant-rich or spirulina item rather than feeding only muscle meat.
Do not rely on natural algae, driftwood, leftover community flakes or tank waste. Those are not a complete ration. Avoid mammal or poultry meat, which can be too fatty and difficult for fish to process. Avoid feeder fish because they add pathogen risk and are unnecessary. Very protein-rich feeding without maintenance can pollute warm water rapidly.
Feed the fish for its condition, not for a marketing label. A healthy juvenile should have a gently rounded abdomen, not a hollow line behind the head and not a persistently swollen belly. If the fish is losing weight, confirm that it receives food after competitors settle, inspect waste and water quality, and seek aquatic-veterinary guidance when a health problem is suspected.
| Food role | Suitable approach | What to monitor |
|---|---|---|
| Complete staple | Quality sinking omnivore pellet or tablet offered near the occupied shelter | The pleco reaches it after lights dim; food is not taken entirely by midwater fish |
| Animal-food variety | Measured frozen Artemia, bloodworm, mysis or suitable mollusc as part of a rotation | Abdomen remains gently rounded and leftovers are removed before they foul warm water |
| Plant or biofilm variety | A smaller spirulina-rich or plant-based sinking item alongside the balanced staple | Variety supports the diet but is not presented as an algae-cleaning ration |
| Avoid | Feeder fish, mammal or poultry meat, tank waste and uncontrolled high-protein portions | Pollution, digestive stress, pathogen exposure and persistent weight change |
Offer food in the evening or shortly before lights go out, when the pleco is more willing to leave cover. Place small portions near separate shelters rather than dropping everything in one open area. In a community tank, watch from a distance or use a dim red light to confirm that the catfish actually reaches the food. A full feeding response from tetras does not prove the bottom fish has eaten.
Juveniles benefit from small regular meals, but every meal increases the need for clean-up. Remove uneaten frozen food after the fish have fed. Rotate complete dry food and suitable frozen items so micronutrients and texture are not tied to one product. Fasting days can be useful for an established well-conditioned adult, but should not be used to hide persistent refusal to feed.
When several plecos share a tank, feed at more than one point. Dominant cave owners may block a subordinate without obvious fighting. Count fish during evening feeding and compare abdomen shape weekly. Rearrange food placement before rearranging the entire aquascape, because removing every familiar territory can cause more stress.
New arrivals may eat cautiously. Keep lights low, offer a familiar-sized sinking food near the chosen refuge and avoid repeatedly lifting caves to check the fish. If it has not eaten, test water and confirm oxygen first. Do not keep adding food until the tank fouls.
This is a cave-oriented fish that often rests through the brighter part of the day and becomes more active in subdued light. Nocturnal or crepuscular behaviour is normal, but a settled fish may learn the feeding routine and appear earlier. Provide cover rather than demanding constant visibility. A pleco forced into the open by a missing shelter is not necessarily confident.
It is not a schooling species. One fish can be maintained when enrichment and welfare needs are met. A compatible pair or small group can show more social and breeding behaviour, but mature fish may defend caves. Territoriality is usually directed towards similar bottom-dwellers rather than peaceful midwater fish, and the risk rises when the footprint, shelter count or feeding access is poor.
Short displays at cave entrances can be normal. Persistent trapping, damaged fins, a fish excluded from every shelter or repeated weight loss require intervention. Add or reposition caves only after confirming that the aquarium has enough floor area; decor cannot compensate for overcrowding. Keep a spare cycled system or divider option when forming an adult group.
The specialist L236 record at L-Welse documents the long-running trade history and variability behind the designation. Historic care experience is useful, but use it alongside the 2025 species description and the actual behaviour of the fish in front of you.
Peaceful midwater fish can be compatible when they share the warm-water range, do not harass a reclusive catfish and do not consume every sinking meal. Choose companions by adult size, temperature, oxygen demand and behaviour, not by the word community. Many fish commonly suggested with plecos prefer cooler water than a routine 26-29 C L236 setup.
Use the tank-mate checker as a first filter, then verify the adult requirements of each species. Calm warm-water tetras or cichlids may work in a sufficiently large aquarium, but boisterous or aggressive fish can keep the pleco hidden and underfed. Large predatory fish may swallow a juvenile, while small slow fish may be stressed by the warm, highly circulated setup.
Be careful with Corydoras and other bottom fish. Some Corydoras require cooler conditions, and all bottom dwellers compete for floor space and food. Other plecos can challenge for caves. A mixed L-number display needs a larger footprint, multiple territories, feeding stations and a plan for adult aggression. Never assume different species cannot fight because they do not hybridise.
Small shrimp, newly moulted invertebrates, eggs and fry are at risk in an omnivorous catfish tank. Adult snails may survive, but safety is not guaranteed. This fish is not a snail-control product and should not be added to solve an invertebrate problem. Use physical maintenance and balanced stocking instead.
| Potential companion | General fit | Main condition |
|---|---|---|
| Calm warm-water midwater fish | Often the most practical community option | Adult temperature and oxygen needs must match, and the pleco must receive sinking food |
| Other L236 | Possible in a larger, well-planned aquarium | Use separated caves and feeding points, observe adult territoriality and keep a separation plan |
| Other plecos or bottom fish | Higher caution | Allow extra footprint and prevent competition for caves, food and the warm-water zone |
| Small shrimp, eggs or fry | Not reliably safe | An omnivorous catfish may consume vulnerable invertebrates, eggs or fry |
| Aggressive or predatory fish | Poor choice | Avoid harassment, injury, forced hiding and predation on juveniles |
Prepare a mature aquarium before dispatch. Confirm temperature, oxygenation, pH, hardness, ammonia and nitrite, and place at least one secure cave where the new fish can enter immediately. Do not plan to cycle the filter after the order arrives. Turn aquarium lights down before opening the insulated package.
Follow the current livestock acclimation instructions supplied with the order. The correct procedure must account for transit time, temperature and the risk of ammonia changing when a bag is opened; a long generic drip is not automatically safest for every shipment. Keep the fish submerged and minimise handling. Never pour transport water into the display when the current instructions advise otherwise.
After release, allow the fish to choose cover. Do not lift the cave repeatedly, chase it for photographs or add new tank mates. Offer a small evening meal once it has settled and remove leftovers. It is common for colour to look muted and for a shy juvenile to remain hidden at first.
During the first week, check respiration, abdomen, grip, fin condition and waste without disturbing the shelter. Test water daily if the biofilter is newly loaded or the tank is small. Contact us through the contact page promptly if delivery condition is in question, and use an aquatic veterinarian for diagnosis or treatment advice after arrival.
A healthy fish should grip surfaces, breathe steadily, carry an intact abdomen and respond to food once settled. Pattern brightness is not a health test: stress and lighting can change contrast. Warning signs include a hollow belly, persistent rapid respiration, clamped or eroding fins, excess mucus, flashing, swelling, inability to grip or prolonged refusal to eat.
Quarantine new livestock in a mature heated system with its own cave, filter and equipment. Match the intended display chemistry and maintain high oxygen. A practical quarantine period depends on source, symptoms and veterinary advice; observation is more useful than medicating every fish automatically. Do not share nets or siphons between quarantine and display tanks.
When a problem appears, test temperature, ammonia, nitrite, nitrate, pH and oxygenation first. Inspect whether the fish receives food and whether another cave owner is excluding it. Environmental correction should be measured and stable. Avoid sudden full-water replacements unless an acute toxin emergency requires immediate dilution.
Catfish and invertebrates can react badly to some medications. Never guess a dose, combine products casually or assume a general tropical treatment is safe for loricariids. Remove carbon only when the medication instructions require it, maintain oxygen and obtain qualified aquatic-veterinary advice for persistent or severe signs.
Mature males usually develop stronger odontodes on the cheeks, pectoral spine and body plates, with a larger head and slimmer outline. Mature females tend to look rounder from above, especially when carrying eggs. These are comparative adult traits, not a guarantee that every juvenile can be sexed from one photograph. This listing remains unsexed.
Hypancistrus seideli is a cave spawner. A mature male holds a suitable cave and guards the clutch. Successful breeding requires compatible adults, clean warm oxygenated water, secure caves, appropriate conditioning food and a stable environment. A pair displayed at a cave may not spawn, and a random group may not contain the desired sex ratio.
Breeding tanks need more than a narrow tube. The adults require enough footprint to avoid constant territorial pressure, while eggs and fry need oxygen, clean water and appropriately sized food. Protect filter intakes and remove waste without disturbing the guarding male. Plan homes for juveniles before encouraging repeated clutches.
The 2025 species description summarises mature sex differences, and the underlying research used body measurements, gonad confirmation and microscopic study rather than casual retail guessing. That standard is why no sex, pair or breeding outcome is promised at 3.5 to 5 cm.
The four gallery images are stylised representative illustrations created to show an L236-type pleco in aquarium settings. They are not photographs of the exact fish in stock and should not be used to count stripes, judge sex, confirm a breeder line or measure body proportions. Actual fish can be darker, creamier, more broken-lined or less symmetrical.
One scene shows two fish. The scene is illustrative and does not change the sale unit: one selected quantity supplies one unsexed fish. Another scene suggests scale through plants and decor, but the only reliable size information is the selected approximate option and the adult planning guidance on this page.
The 2025 species account shows substantial natural variation within H. seideli. Juvenile lines may broaden or break, while older fish can develop finer reticulation. Stress after transport may temporarily reduce contrast. Judge an arrival first by respiration, posture, grip and body condition, then allow colour to settle under stable care.
Historic trade material also shows why exceptional photographs should not define every L236. Aquarium Glaser's L236 trade note documents captive-bred examples in the hobby, but it does not establish the breeder or origin of this current batch. This listing therefore makes no captive-bred, wild-caught or locality claim without supplier evidence.
| Listing | Main distinction | Planning note |
|---|---|---|
| This L236 basic grade | Historic Cracked Zebra morph within H. seideli, without Super White or RB promise | About 15 cm TL, warm oxygenated water, caves and intermediate-to-advanced care |
| L236 RB Line | Separate selected commercial line or grade | Compare current size, availability and line disclosure; do not transfer an RB claim to this basic product |
| L333 historic morph | Another L-code form now included in H. seideli by the 2025 revision | Check the specific listing and stock rather than assuming identical pattern or size |
| L066 King Tiger historic morph | Long-established King Tiger trade form | Current taxonomy groups it within H. seideli, but retail lines can look and price differently |
| L046 Zebra Pleco | Distinct species Hypancistrus zebra with bold straighter striping | Do not use Zebra Pleco as an unqualified synonym for L236 |
| L260 Queen Arabesque | Different fine-patterned Hypancistrus trade identity | Compare accepted identity, adult size and stock-specific care separately |
| Super Red Bristlenose | Ancistrus trade strain with different shape, diet and breeding behaviour | Often a more familiar community pleco, but it is not a substitute identity for L236 |
Browse the South American catfish category to compare current stock. Availability changes by size and listing, so a related link is not a promise that another fish is in stock. Compare adult care before price or pattern, and avoid buying several cave-dwelling species for one small footprint.
Keep the accepted name, L-number, supplier grade, size option and purchase date with the aquarium record. If the fish is rehomed, pass on the same information and state clearly that locality, breeder and pedigree were not supplied. Good records prevent a basic-grade fish from later being sold as Super White, RB or a wild locality line.
Do not mix breeding groups casually and then distribute offspring under a precise line name. The variation and potential overlap within Xingu Hypancistrus make honest provenance especially important. Appearance alone is not a genetic test. A beautiful fish can still have uncertain ancestry.
Never release the fish, eggs, fry, plants, snails or aquarium water into the environment. The 2025 species paper records an introduced H. seideli population near Altamira linked to released captive fish, which is a direct reminder that aquarium releases can establish outside intended populations. Rehome through responsible aquarists instead.
Plan for a long-lived specialist animal even though the exact lifespan of this stock is not guaranteed. Maintain spare equipment, transport plans and a future home if the group becomes incompatible. The correct purchase decision is based on adult capacity and husbandry interest, not only the unusual pattern.
UK livestock dispatch depends on current stock, selected size, postcode, weather, courier schedule and the services shown at checkout. Read the current delivery information before ordering. The page does not promise next-day or overnight arrival where the route, weather or dispatch calendar does not support it.
Eligible livestock orders are covered by the published Live Arrival Guarantee. If there is a covered problem, photograph the affected fish in the unopened sealed bag within two hours of delivery and contact us promptly. The current process and exclusions on the delivery and returns information apply.
New customers can use WELCOME10 for 10% off a first qualifying order while the code terms remain active. Enter it at checkout. The discount does not change the one-fish sale unit, selected size, care requirement or livestock delivery charge.
The current accepted name is Hypancistrus seideli, described in 2025. The taxonomic account includes L236 among several historic L-number morphotypes. L236 remains useful as the trade-form designation.
Basic is the supplier's commercial pattern grade. It is not a subspecies, locality or health grade, and it does not guarantee Super White, SW or RB markings. Pattern and contrast vary among fish and as they mature.
One selected quantity supplies one unsexed fish in the chosen approximate size. It is not a pair, group or sexed specimen. A gallery scene containing two fish remains illustrative.
Choose approximately 3.5 cm or 4-5 cm when that option is available. The band is approximate and exact dispatch length is not guaranteed. These are juvenile sizes, not the adult maximum.
Plan for about 15 cm total length. The 2025 Hypancistrus seideli type series included a specimen measured at 150.2 mm total length, which is the evidence used for this safer adult plan.
Use a mature aquarium around 100 cm long and roughly 160 litres or more for one adult or a carefully matched pair. A group needs more length, width, caves, filtration and feeding stations.
It is better for an intermediate or well-prepared keeper. The fish needs warm stable water, high oxygen, mature filtration, targeted evening feeding, secure caves and management of territorial behaviour.
No. Do not buy it as an algae-control service. Feed a varied complete sinking omnivore diet with suitable animal foods and measured plant or biofilm variety, and maintain the aquarium manually.
Wood is useful for shade, structure and biofilm but is not a nutritional requirement in the way it is for specialised wood-eating plecos. Provide a complete diet and secure caves rather than relying on wood.
About 26-29 C is a practical routine range. Maintain strong surface movement and aeration because warm water carries less dissolved oxygen. Avoid rapid temperature changes.
A practical range is pH 6.0-7.5 and roughly 2-12 dGH. Stability, zero ammonia and nitrite, clean water and oxygen are more important than repeatedly adjusting small numerical differences.
It can live with calm midwater fish that share its warm-water requirements and do not outcompete it at feeding time. Other bottom fish and plecos need more caution because cave and food competition can occur.
Yes, in a sufficiently large aquarium with multiple separated caves, feeding points and a plan for adult territoriality. They are not schooling fish, and a group should never be crowded into a small tank merely to reach a number.
It is usually most active in subdued light, at dusk and overnight. A settled fish may emerge for a predictable meal. Provide shaded shelters rather than forcing constant daytime visibility.
Not reliably enough for this retail listing. Mature males often show stronger odontodes, a larger head and slimmer body, while females tend to be rounder. One quantity remains unsexed.
It is a cave spawner. A mature male guards the clutch inside a suitable cave. Breeding requires compatible adults, clean oxygenated warm water, conditioning food and fry capacity; no pair or spawning outcome is guaranteed.
No. The four preserved images are stylised representative illustrations, not WYSIWYG photographs. Actual pattern, colour, sex, proportions and exact size within the selected band vary.
No. Cracked Zebra Pleco is a trade name for L236 within Hypancistrus seideli. The true L046 Zebra Pleco is the distinct species Hypancistrus zebra.
No breeder, generation, wild source or locality is documented in the current supplier record, so this listing makes no such claim. Retain the L236 basic-grade identity and do not invent provenance.
Follow the current delivery terms. For a covered problem, photograph the affected fish in the unopened sealed bag within two hours and contact us promptly so the claim can be assessed.
WELCOME10 gives 10% off a first qualifying order while its active terms apply. It does not alter livestock delivery charges, option availability, the one-fish sale unit or care requirements.
Bottom line: choose this L236 Pleco if you want the supplier's basic-grade Cracked Zebra trade form and can provide a long mature aquarium, clean warm oxygenated water, secure caves, targeted feeding and honest expectations about pattern and provenance. The fish is now best recorded as Hypancistrus seideli, while L236 remains the useful trade identity.
