Emerald Dwarf Danio (Danio erythromicron)
£5.99
Aggressive orange-blotch Lake Malawi mbuna for mature 300L+ hard-water aquariums. Exact pattern, base colour, sex and locality are not guaranteed.
Maylandia zebra
OB Red Zebra Mbuna bond and breed in male/female pairs — buying a pair gives them the social structure they need.
Aggressive orange-blotch Lake Malawi mbuna for mature 300L+ hard-water aquariums. Exact pattern, base colour, sex and locality are not guaranteed.
Cichlids are one of the most diverse fish families in the hobby. From tiny apistogrammas to massive oscars, this guide covers the basics of keeping them well.
Maintain these water conditions for optimal health and vibrant colors
OB Red Zebra Mbuna is the supplier's orange-blotch colour form of Maylandia zebra, a territorial rock-dwelling cichlid from Lake Malawi. OB means orange blotch: dark melanin markings are concentrated into irregular patches over an orange, yellow, cream or pale background. Every fish can develop a different arrangement, so blotch size, base colour, sex and final appearance are not guaranteed.
Identity and image disclosure: Petra supplies this line as “Pseudotropheus zebra red OB,” but provides no stock photograph or collection locality. The June 2026 Catalog of Fishes treats Maylandia zebra as valid; Metriaclima zebra and Pseudotropheus zebra remain important alternative names. The four preserved gallery images are highly uniform illustrative OB-style cichlids, not photographs of the exact fish supplied. This listing does not claim Maylandia estherae, locality, sex or an identical orange-black pattern.
This is an aggressive mbuna for a mature, large, hard-water aquarium, not a general community fish and certainly not reptile live food. The old handle and metadata were contaminated by bearded-dragon and live-food keywords; those phrases have no place on a live cichlid product. Care must be planned around adult size, territory, group structure, filtration and a separation option.
| Customer name | OB Red Zebra Mbuna |
|---|---|
| Current scientific name | Maylandia zebra (Boulenger, 1899) |
| Supplier / alternative names | Pseudotropheus zebra red OB; Metriaclima zebra is also widely used |
| Meaning of OB | Orange blotch, a variable dark-blotch phenotype over orange, yellow, cream or pale ground colour |
| Origin | Lake Malawi at species level; exact locality is not supplied for this stock |
| Care level | Moderate to advanced |
| Temperament | Aggressive territorial mbuna |
| Published maximum | 11.3cm standard length; plan for approximately 13-14cm total length |
| Recommended aquarium | 300L+ and around 120cm long for a planned group; 400L+ for a complex mbuna community |
| Temperature | 24-26C as a stable routine range |
| pH | Approximately 7.8-8.6 |
| General hardness | Approximately 9-19 dGH |
| Diet | Aufwuchs-focused omnivore with a plant-rich staple and modest animal protein |
| Breeding | Maternal mouthbrooder |
| Selection | Size option only; exact pattern, sex and locality are not guaranteed |
Select one live fish from the available 3-4cm, 4-5cm, 5-6cm or XL option. These are dispatch-size grades, not adult size or sex promises. XL is a supplier grade rather than a precise centimetre band, so ask for current guidance if an exact measurement is essential.
All four options are unsexed. OB expression is often associated with female-linked sex-determination systems in Lake Malawi cichlids, but OB males occur and appearance cannot provide a retail sex guarantee. A customer ordering several juveniles cannot assume a one-male-to-three-female group.
Every fish should be expected to differ from the gallery. Base colour may range through orange, yellow, cream and pale tones; blotches can be sparse, dense, small or broad; fins may carry grey, black, blue or pale markings. Pattern can change as a juvenile grows.
The original species was described as Tilapia zebra. It later appeared in Pseudotropheus, then in the competing genus names Metriaclima and Maylandia. Eschmeyer's Catalog of Fishes, updated 10 June 2026, currently lists Maylandia zebra as valid. FishBase follows that treatment.
The naming debate is not imaginary. Recent authors continue to argue about the availability and diagnosis of Maylandia versus Metriaclima. For customers and search systems, the sensible approach is to use the current Catalog name as primary and explain the alternatives once, rather than stuffing all three genera into every heading.
The supplier's phrase “Pseudotropheus zebra red OB” maps toward the M. zebra complex, not automatically to Maylandia estherae. Google results often use OB Red Zebra for M. estherae, but this record provides no evidence for changing the stock to that different species. This page therefore does not make that substitution.
OB means orange blotch. Dark pigment is gathered into irregular patches rather than arranged as a normal barred pattern. Research identifies increased Pax7 expression associated with the phenotype and connects the trait to sex-determination evolution in Lake Malawi cichlids.
OB is not one fixed paint scheme. Scientific work documents orange, orange-blotch, white and white-blotch expression across multiple mbuna species and populations. A trade label cannot reveal the exact genotype, locality or purity of an unproven commercial line.
| Term | Meaning | What it does not guarantee |
|---|---|---|
| OB | Orange-blotch phenotype | One exact pattern or species |
| O | Orange or pale form with few obvious blotches | Female sex or a separate species |
| WB | White-blotch descriptive form | Locality or breeding purity |
| Red OB Zebra | Aquarium supplier/trade phrase | M. estherae, M. zebra locality or exact adult colour without records |
All four 1024px images are preserved to protect existing media. They show bright orange fish with bold black blotches in driftwood, paired, plain-background and planted scenes. The individuals look unusually similar in body, eye and blotch structure, which is inconsistent with the unique-pattern promise expected from genuine OB variation.
The images are therefore illustrative. They communicate an orange-black OB concept, not the exact fish, sex, locality or mature pattern. The pair scene is not a sexed pair, and the plant scene is not proof that an aggressive mbuna will leave a planted aquarium undisturbed.
| Gallery view | Useful information | Limit |
|---|---|---|
| Driftwood hero | General orange-black trade appearance | Wood is not the core rocky Malawi habitat and pattern is not guaranteed |
| Two-fish scene | Illustrates more than one OB fish | Not a pair, sex ratio or compatibility guarantee |
| Plain side profile | Clear view of an illustrative blotched body | Not a current supplier stock photograph |
| Planted scene | Shows colour against green plants | Not a plant-safety or aquascape recommendation |
Maylandia zebra is endemic to Lake Malawi. FishBase records it from rocky habitat at depths around 6-28m, including shallow sediment-free zones and deeper areas with more sediment. Adults feed against the substrate by combing loose material from biocover and also take plankton in open water.
This ecology supports a rock-based aquarium with open water and fine sand rather than dense wood or delicate planting. Stable hard alkaline water, high oxygen and mature grazing surfaces are more important than copying a fictional exact locality.
No location is attached to this supplier stock. Do not market or breed it as a named reef, island or shore population. Locality records matter because colour, morphology and genetics vary around Lake Malawi.
FishBase records 11.3cm standard length, which excludes the caudal fin. For aquarium planning, allow approximately 13-14cm total length. Individual size varies with sex, lineage, food and conditions.
Delivery size is temporary. A 3-4cm juvenile needs the adult aquarium immediately, because hierarchy and territory develop before full size. The larger size options may establish dominance more quickly when added to smaller fish.
Growth should be steady rather than forced with excessive protein. Overfeeding increases waste, body mass and digestive risk without improving welfare. Track body condition, not just length.
We recommend at least 300 litres and around 120cm length for a planned group. A complex mixed-mbuna aquarium should start around 400 litres and preferably 150cm length, with many visual barriers. The old 200L minimum leaves too little margin for an aggressive adult group.
| Stocking aim | Space | Notes |
|---|---|---|
| Species-focused planned group | 300L+ / about 120cm | Unsexed juveniles still require a separation plan |
| Complex mixed-mbuna community | 400L+ / preferably 150cm | Match diet, adult size and aggression |
| One fish in a community | Not the preferred plan | May become dominant or remain chronically stressed |
| Pair or trio in 200L | Not recommended | Aggression can concentrate on one subordinate fish |
Do not use “overstocking” as permission to exceed filtration and oxygen capacity. Managed density can change how aggression is distributed, but it also increases waste, disease transmission and maintenance demand. Space, zoning and removal options remain essential.
A one-male-to-three-female ratio is commonly suggested for breeding groups, but these retail options are not sexed. It is a management target, not a guarantee. Multiple males may emerge from a juvenile group and require more space or separation.
Begin with a group only if the aquarium can hold every fish as an adult. Watch whether each fish can feed, enter more than one refuge and cross the aquarium without continuous pursuit. Persistent hiding, dark stress colour, a pinched belly or surface confinement means intervention is needed.
Do not add one tiny juvenile to an established adult mbuna aquarium without assessing mouth size and aggression. Use a divider or separate cycled grow-out system where appropriate.
Build stable rock structures with caves, passages and broken sight lines. Place heavy rocks on a protected base before adding sand so digging cannot undermine them. Avoid narrow traps and unstable piles.
Leave open lanes for swimming and feeding. Several separate rock zones are more useful than one central mound controlled by a dominant fish. Use fine sand or smooth small gravel that does not damage the mouth during grazing and excavation.
Plants are optional. Anubias, Java fern and some Vallisneria may survive if secured and compatible with hard water, but no plant-safety guarantee applies. The fish may dig, graze or uproot them.
| Parameter | Routine target | Management |
|---|---|---|
| Temperature | 24-26C | Stable; FishBase's wider 22-28C range is not a daily target |
| pH | Approximately 7.8-8.6 | Maintain with natural buffering, not rapid corrections |
| GH | Approximately 9-19 dGH | Match Malawi hard-water companions |
| KH | Useful carbonate stability | Protects against sudden pH decline |
| Ammonia | 0 mg/L | Toxic and more dangerous at high pH |
| Nitrite | 0 mg/L | Any detectable level requires action |
| Nitrate | Keep low and stable | Control through stocking, feeding and water changes |
Test source water before adding Rift Lake salts. Prepare remineralised replacement water separately and consistently. Evaporation leaves minerals behind, so do not add a full salt dose with every top-up.
Use mature biological filtration rated above the aquarium's nominal size and strong surface movement. Mbuna groups create substantial waste, and warm hard water still requires good oxygenation.
Direct flow so debris reaches the intake without creating one exhausting current. Clean mechanical media before it blocks, but preserve biological media and never sterilise the whole filter at once.
Perform regular matched water changes based on nitrate trend, feeding and stocking. A fixed percentage is less important than consistent low waste and stable chemistry.
Maylandia zebra combs loose material from biocover and also takes plankton. It is more accurate to describe it as an aufwuchs-focused omnivore than a strict herbivore. The aquarium staple should remain plant-rich and fibre-supported.
Use a quality spirulina or algae-rich complete mbuna pellet or flake. Rotate with other complete vegetable-supported foods, occasional blanched courgette or spinach and modest small portions of daphnia, brine shrimp or mysis.
| Food | Role | Use |
|---|---|---|
| Spirulina-rich mbuna pellet or flake | Staple | Choose a size every fish can swallow |
| Plant-supported granule or algae wafer | Variety | Distribute across the group |
| Blanched vegetable | Occasional fibre-rich supplement | Remove leftovers promptly |
| Daphnia, brine shrimp or mysis | Modest animal-protein variety | Small occasional portions |
| Feeder fish, crickets, fatty meat or heavy bloodworm | Unsuitable | Do not use as routine food |
The old page's reptile live-food, cricket and Ukraine phrases were search contamination, not care advice. They are removed from the body, FAQs, internal links and active keyword record.
Feed modest portions once or twice daily and spread food over a broad area. A dominant fish should not control one feeding point. Remove excess before it settles deep in rockwork.
Check each fish from above and the side. A healthy fish should not have a pinched abdomen, persistent swelling or rapid heavy growth. Refusal, long abnormal faeces or bloating needs water and diet review rather than another meal.
This is an aggressive mbuna. Males may defend rock zones and females may also chase. OB colour does not make the fish gentler. Aggression can increase with maturity, spawning, cramped territory and incompatible neighbours.
Short displays and retreats can be normal. Continuous pursuit across the aquarium, torn fins, surface confinement or loss of feeding access is not. Use the separation plan immediately rather than waiting for severe injury.
Choose similarly robust Lake Malawi mbuna with compatible adult size, plant-rich diet and aggression. A Yellow Lab Cichlid can be considered in a large structured aquarium, but no combination is automatically safe.
Avoid peaceful haps, delicate peacocks, small community fish, shrimp and soft-water species. Avoid another Zebra form where hybridisation or uncertain fry would be a problem. Similar colour can also provoke conflict.
| Listing | Supplier/form label | Selection warning |
|---|---|---|
| Blue OB Masinje Zebra | Named Blue OB Masinje form | Keep locality/form lines separate |
| Gold Mundola Point Zebra | Gold locality-associated form | Do not merge with red OB stock |
| Blue Zebra | Blue supplier form | Different colour promise and possible provenance |
| Zebra South Red + Red | Red-form supplier line | Not identical to OB pattern |
| Red + Blue Zebra | Red-blue supplier form | Do not assume same sex or colour genetics |
These names are not decorative options on one proven locality product. Keep forms separate when breeding and retain invoices and source records with fry.
OB is often associated with females in natural populations because colour and sex-determination loci can be linked, but OB males are scientifically documented. Egg spots, colour brightness and body size do not provide an absolute juvenile sex test.
This product is sold by size only. Do not order one orange fish and assume female, or one heavily blotched fish and assume male. Experienced venting of mature fish may improve confidence but involves handling and is not a guarantee offered here.
Maylandia zebra is a maternal mouthbrooder. After spawning, the female carries eggs and developing fry in her mouth. FishBase reports clutches up to around 60 eggs, but actual brood size varies with female size and condition.
A brooding female may eat little and can lose condition. Do not isolate or strip her without understanding the risks. Provide a mature recovery system and protect released fry from adults and filter intakes.
Never distribute uncertain commercial fry as a named locality. Avoid crossing this line with M. estherae, other Zebra forms or unknown OB cichlids.
Prepare the mature hard-water aquarium before dispatch. Read the current Tropical Fish Co acclimation instructions, match temperature and avoid an unattended long drip after the bag is opened.
Reduce lighting and introduce the fish near several refuges. Do not feed heavily on arrival. Observe breathing, balance and the response of established residents.
Retain packaging and take clear evidence within the published live-arrival window if there is a concern.
Quarantine in a fully cycled, heated, hard alkaline aquarium with secure rock refuges. Use dedicated equipment and never pour shipping water into the display.
Observe appetite, skin, fins, respiration and faeces. Diagnose before medication because white spot, bacterial injury, internal problems and water-quality stress require different responses.
| Period | Priority | Record |
|---|---|---|
| Arrival day | Controlled acclimation and safe refuge | Breathing, balance, wounds and delivery evidence |
| Days 2-7 | Confirm feeding and zero ammonia/nitrite | Foods accepted, waste and aggression |
| Weeks 2-4 | Assess hierarchy and body condition | Chasing, hiding, fin damage and weight |
| Months 2-3 | Set adult stocking and maintenance | Growth, sex clues, nitrate and territory use |
Test water first. High-pH ammonia, nitrite, low oxygen and aggression can cause disease-like signs. Seek experienced aquatic-veterinary help for severe or persistent problems.
| Frequency | Task | Purpose |
|---|---|---|
| Daily | Observe feeding, hierarchy, breathing and equipment | Find exclusion and illness early |
| Weekly | Test as needed and change matched water | Control nitrate without chemistry shock |
| As required | Clean mechanical media and accessible debris | Maintain flow while preserving biological media |
| Monthly | Review rock stability, growth and adult biomass | Prevent juvenile stocking becoming adult overcrowding |
| After every addition | Reassess territories and food access | Hierarchy changes when stocking changes |
Juvenile pattern is not a final adult photograph. Base colour can intensify, pale or shift as chromatophores develop, while dark blotches may become more or less distinct. Social rank, breeding condition, stress, diet, background and lighting affect what the keeper sees at any one moment.
A newly delivered fish can look muted after transport. Judge recovery from breathing, balance, appetite and gradual return of normal behaviour before judging colour. Brightening the light or feeding colour-enhancing food cannot create a genetically absent pattern and may stress a fish that still needs refuge.
OB does not require every blotch to be jet black or every background to be vivid red. Some genuine fish have irregular grey, brown or blue-black marks over orange, yellow or cream. Others approach an O morph with relatively little visible blotching. The supplier's “red OB” wording is therefore a broad commercial description.
| Observation | Possible explanation | Appropriate response |
|---|---|---|
| Pale after delivery | Transport stress or subdued juvenile colour | Provide stable water and quiet cover; do not force colour |
| Blotches become clearer with age | Normal pigment development | Photograph changes and retain source records |
| Very few dark marks | Light OB or O-like expression | Do not assume wrong species from colour alone |
| One fish matches the gallery poorly | Expected individual variation or gallery limitation | Use the selection disclosure, not the illustration, as the promise |
| Sudden darkening and hiding | Stress, hierarchy or water problem | Test water and inspect aggression before changing lighting |
The three genus names reflect a long-running nomenclatural and diagnostic debate, not three different care species in this product. Pseudotropheus zebra is the older broad placement still used by Petra. Metriaclima was described for the zebra complex in a major 1997 revision. Maylandia has priority in the Catalog of Fishes treatment currently followed here.
Some 2026 taxonomic authors continue to argue that Maylandia was not made available correctly and that Metriaclima should be used. Other analyses conclude that Maylandia is available and has priority. This is why a high-quality page should date its decision and cite the authority instead of claiming the debate never existed.
The customer title uses Maylandia zebra because that is the current Catalog and FishBase combination on the review date. The metafields and FAQs retain the alternatives for search understanding. Future editors should recheck the Catalog before changing the genus and should never infer a species change from a genus debate alone.
The common name Red Zebra most often points to Maylandia estherae in aquarium retail. That species has orange/red and blue colour forms, and OB individuals occur in some populations. Search results therefore strongly associate OB Red Zebra with M. estherae.
Petra's actual line, however, is consistently recorded across four size grades as Pseudotropheus zebra red OB. The prior site record also calls it Maylandia zebra. No supplier image, locality, DNA or diagnostic morphology supports replacing those records with M. estherae. Doing so merely because competitors rank for the other species would be SEO-led misidentification.
The page keeps the exact conflict visible. If the supplier later supplies a verified stock photograph and provenance showing M. estherae, the product can be reviewed. Until then, the title uses the supplier-supported M. zebra identity and avoids a false locality.
Buying four fish does not create a guaranteed harem. At small sizes, external sexing is uncertain, OB males are possible, and siblings can mature at different rates. A group may contain multiple males or one especially dominant female. The aquarium and backup plan must account for all outcomes.
Introduce a juvenile group together where practical, after quarantine, rather than adding one small fish to an established hierarchy. Arrange several distinct rock territories and feed in multiple locations. Observe the group daily during maturation because behaviour that was calm at 4cm can change at 8-10cm.
Do not add more fish automatically when aggression appears. Additional stocking can sometimes distribute attention, but it also consumes adult space and increases waste. First identify whether the problem is one incompatible fish, insufficient footprint, a single dominant cave or a poor species mix.
Keep written records for each fish where possible. Photographs of both sides help track unique OB markings and injuries. Individual recognition makes it easier to see which fish is not feeding or which one repeatedly causes damage.
| Scenario | What it indicates | Response |
|---|---|---|
| Short chase followed by separation | Normal boundary or hierarchy display | Continue observing food and refuge access |
| One fish patrols the entire aquarium | Insufficient zoning or dominant individual | Separate or redesign in a larger footprint |
| Subordinate remains above the rocks | No safe territory | Intervene immediately; do not wait for injury |
| Repeated mouth locking | Escalated dominance contest | Use the divider or second cycled tank |
| Female harassed while mouthbrooding | Breeding pressure and poor refuge | Follow the planned brooding-female strategy |
| New fish is attacked on introduction | Established hierarchy rejects the addition | Remove it; do not rely only on lights-off introduction |
Rearranging rockwork can interrupt territory temporarily, but it is not a cure for an undersized aquarium or incompatible fish. Every rock move must preserve structural stability and biological filtration. Never dismantle the tank while leaving fish exposed to falling rock.
Measure source pH, GH and KH after aeration. Fresh tap water can change as dissolved gases leave, so a reading taken immediately from the tap may not represent water entering the aquarium. Local water-company reports provide useful context but do not replace aquarium testing.
If source water is too soft, use a measured Malawi remineralising product in a separate clean container. Mix fully, bring temperature close to the aquarium and verify the result before use. Record the dose and actual container volume. Never add concentrated salts directly over fish.
Evaporation removes water but leaves most minerals behind. Top up evaporation with appropriate low-mineral water, then replace minerals during planned water changes. Adding a full salt dose to every top-up causes gradual hardness and conductivity creep.
Do not use coral, limestone and commercial buffers all at once without understanding their combined effect. Choose a repeatable system and trend it over time. Stable pH 8.0 is preferable to oscillating between the extremes of a published range.
Loss of appetite, abdominal swelling, pale stringy faeces and withdrawal are often collectively called Malawi bloat, but those signs can arise from diet, stress, parasites, bacteria or water quality. A label is not a diagnosis. Test water and review hierarchy and recent feeding first.
Prevention centres on a suitable plant-rich complete diet, modest portions, low chronic aggression, clean water and quarantine. Large rich meals, repeated bloodworm and feeder fish are unnecessary. Fibre-supported food does not mean starving the fish or excluding all animal protein from an omnivorous grazing ecology.
Move a seriously affected fish to an appropriate hospital aquarium only when the move can be performed safely. Match hard-water conditions and oxygenation. Obtain aquatic-veterinary guidance for severe swelling, loss of balance, rapid breathing or repeated group cases.
The genetics that make OB fish visually striking also make accurate records important. Do not cross this uncertain commercial line with a verified reef population, M. estherae, an OB peacock or another zebra-complex product. Fry may look attractive while losing every defensible identity.
A brooding female should not be stripped simply to maximise fry numbers. Stripping requires skill, correct timing and a mature grow-out system. Natural release may be safer in a well-designed breeding aquarium, while a busy community may consume fry. Decide the method before spawning occurs.
Grow-out tanks need the same mature filtration and stable mineral chemistry as the adult tank. Fry require fine complete foods and frequent small meals without accumulating waste. Plan homes before producing repeated broods.
When rehoming offspring, disclose the parents as commercial OB Maylandia zebra stock with unverified locality. Do not upgrade them to a named wild form based on colour resemblance or a social-media identification.
This page does not promise a fixed eight-year lifespan because longevity evidence varies, but a well-kept mbuna is a multi-year commitment. The adult aquarium, filtration, hard-water preparation and aggression management must remain sustainable after juvenile colour and novelty have passed.
Older or subordinate fish may need food distributed closer to refuge. Watch for gradual weight loss, mouth damage, clouded eyes and reduced swimming strength. Investigate rather than assuming all decline is age.
Never release fish, fry, plants or aquarium water into natural waterways. Rehome responsibly and disclose uncertain provenance. Clean and dry equipment before it moves between unrelated systems.
This repaired listing removes reptile-food keyword contamination, uses the current scientific name, explains the active genus debate, distinguishes M. zebra from M. estherae, and treats OB as a variable scientific phenotype rather than a fixed image promise.
Live fish are prepared for tracked UK delivery under the current Tropical Fish Co live-arrival terms. Eligible first-time customers can use WELCOME10 for 10% off their first order. Check current delivery areas, dispatch days, evidence requirements and acclimation instructions before ordering.
Browse the Lake Malawi and Victoria cichlid collection to compare adult size, diet, form provenance and aggression before choosing tank mates.
The June 2026 Catalog of Fishes uses Maylandia zebra. Metriaclima zebra and Pseudotropheus zebra are important alternative names in scientific and aquarium literature.
Not proven. The supplier identifies this stock as Pseudotropheus zebra red OB, mapping to M. zebra. OB Red Zebra is also used for M. estherae online, so this page does not silently substitute that species.
OB means orange blotch, a variable pigment phenotype with dark irregular blotches over orange, yellow, cream or pale ground colour.
No exact match is guaranteed. Petra provides no stock photo and every OB fish can develop a different pattern. The four preserved images are illustrative.
FishBase records 11.3cm standard length. Plan for approximately 13-14cm total length with the tail included.
Use at least 300 litres and about 120cm length for a planned group. A complex mixed-mbuna community should have 400 litres or more and preferably 150cm length.
Yes. This is an aggressive territorial mbuna. OB colour does not reduce aggression, and a separation plan is required.
No. OB is often sex-associated in wild populations, but OB males occur. These size options are unsexed.
Use a plant-rich complete mbuna food as the staple, with vegetable-supported variety and modest occasional daphnia, brine shrimp or mysis.
That is not a default recommendation. Diet and aggression can conflict. Any mix needs a large aquarium, species-level planning and close monitoring.
They are maternal mouthbrooders. The female carries eggs and fry in her mouth and needs protection from excessive harassment.
Yes, under the current Tropical Fish Co terms when the published delivery, evidence and acclimation conditions are followed.
Live fish vary naturally. The supplier provides no locality or current stock photograph. This page uses Maylandia zebra as the evidence-led identity while disclosing uncertainty over commercial line, sex and OB pattern.
18–28°C · pH 6.5–8 · 20L
22–26°C · pH 6–7.5 · 60L
24–28°C · pH 7.5–8.5 · 500L
22–26°C · pH 6–7.5 · 150L
24–28°C · pH 6.5–7.5 · 2000L
24–28°C · pH 5.5–7 · 60L
24–27°C · pH 7.5–8.8 · 150L
24–28°C · pH 7.5–8.5 · 40L
23–27°C · pH 5.5–7.5 · 80L
24–28°C · pH 8–9 · 300L
20–25°C · pH 6–7.5 · 80L
20–25°C · pH 6–7 · 60L