Moderate
Usisya Mara Rock Mbuna (Metriaclima usisyae)
23–28°C · pH 7.5–8.5
£17.99
One unsexed Saulosi Mbuna per selected size grade. Females and juveniles are usually yellow; dominant mature males may become blue-barred. For planned, rock-rich Lake Malawi aquariums.
Chindongo saulosi
Saulosi Mbuna are a shoaling species — they need 6+ to feel safe and show their full colour.
One unsexed Saulosi Mbuna per selected size grade. Females and juveniles are usually yellow; dominant mature males may become blue-barred. For planned, rock-rich Lake Malawi aquariums.
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
Saulosi Mbuna, Chindongo saulosi, is a compact rock-dwelling cichlid from Lake Malawi with one of the most recognisable colour changes in the mbuna group. Females and juveniles are usually yellow to yellow-orange. A dominant mature male can become blue with dark vertical bars, while immature or subordinate males may remain yellowish for longer. That difference makes a settled group visually striking, but it also means colour alone cannot guarantee the sex of a young fish.
This listing is for one Saulosi cichlid per unit in the size selected above. The available choices are supplier size grades rather than sexed variants. Sex, adult colour and social role are not guaranteed, and the XL option is a supplier grade rather than a precise centimetre measurement. Plan the aquarium for territorial mbuna before ordering, and do not buy an assumed male-and-female pair from unsexed size choices.
Choose the size grade that best fits your stocking plan. Each quantity added to the basket represents one live fish in that selected grade. Ordering four means four fish, not four packs or a guaranteed group structure. The smaller grades are likely to be juvenile or immature fish, so their final sex and mature colour may not yet be visible. Even a larger yellow fish should not automatically be labelled female because a subordinate male can delay or suppress blue breeding colour.
| Size choice | What the label means | What is not promised |
|---|---|---|
| 2-3 cm | One small juvenile in the stated supplier size band | Sex, final colour or future rank |
| 4-5 cm | One growing fish in the stated supplier size band | A blue male or yellow female |
| 5-6 cm | One larger growing fish in the stated supplier size band | Breeding readiness or a chosen sex |
| XL | One fish in the supplier's XL grade | An exact length, sex or adult colour |
Fish are living animals, so natural variation in shade, barring, body condition and exact measured length is normal within a commercial grade. The photographs help identify the species and show possible yellow presentations, but they are not photographs of the exact individual that will be dispatched. Read the colour section below before choosing this fish specifically for a blue or yellow display.
The accepted name used by the Catalog of Fishes is Chindongo saulosi (Konings, 1990). Many aquarium books, care sheets and retailers still use the original combination Pseudotropheus saulosi. Both names refer to the same species here. Keeping the older synonym on the page helps aquarists reconcile older labels and searches without pretending it is a different fish.
Saulosi belongs to the Lake Malawi rock-dwelling cichlids commonly called mbuna. It is not a peacock cichlid, hap or Tanganyikan shell-dweller. That distinction matters because mbuna habitat use, territorial behaviour and feeding style differ from those groups. A generic African-cichlid label is not enough for long-term care; identify every species in a mixed aquarium and check its adult size, behaviour and diet separately.
| Accepted name | Chindongo saulosi |
|---|---|
| Older synonym | Pseudotropheus saulosi |
| Family | Cichlidae |
| Ecological group | Mbuna, a rock-associated Lake Malawi cichlid |
| Type locality | Taiwan Reef, about 9 km north-west of Chizumulu Island |
Young Saulosi generally begin yellow. Females usually retain a yellow to yellow-orange body, sometimes with subtle barring or darker markings depending on mood and hierarchy. A dominant mature male can transform into blue with bold dark vertical bars. The change may be gradual, and its timing is affected by age, social position and the presence of stronger males.
A yellow fish is therefore not automatically female, and a fish bought at a larger size is not automatically a mature blue male. Subordinate males can remain yellowish or show an intermediate pattern. Stress can also mute colour temporarily after travel or introduction. Give a new arrival stable water, shelter and time before judging its mature appearance.
The size options are unsexed. We do not promise a blue male, yellow female, breeding pair or fixed male-to-female ratio. If a precise sex ratio is essential to an established colony, contact us before ordering to ask what can genuinely be confirmed from the current stock.
FishBase places this species in the sediment-free rocky upper reef, where current is stronger and rock surfaces support a living biocover. Saulosi pick and nibble loose material from that surface. The habitat is structurally complex: gaps, faces and broken sight lines allow feeding, retreat and territorial display within a relatively small natural area.
That natural history points directly to the aquarium design. An open decorative tank with one cave is not enough for a managed group. Build several independent routes through stable rockwork, provide more retreats than there are dominant territories, and leave clear water movement around the structure. Rock should be supported securely before fish begin digging around its base.
FishBase records a maximum length of 8.6 cm total length. Individual aquarium fish may mature below that figure, and commercial terms such as dwarf mbuna describe the species relative to larger Lake Malawi cichlids rather than making it suitable for a small community aquarium. Body depth, territory and group behaviour create a larger spatial requirement than length alone suggests.
Growth depends on age, genetics, water quality, diet and social conditions. Fast growth should never be forced with excessive rich food. A steady juvenile with a full but not swollen abdomen, normal swimming and a reliable appetite is preferable to rapid weight gain. Measure progress over months rather than trying to turn a small grade into an adult quickly.
For a managed Saulosi group, plan around an aquarium approximately 120 cm long and around 200 litres or larger as a cautious baseline. This is a planning guide, not permission to fill every 200-litre tank with the same number of fish. Width, rock displacement, filtration capacity, existing stock and the number of territorial males all change what is workable. A larger footprint gives chased fish more routes and gives the keeper more room to separate territories.
Do not use a short, tall tank simply because its litre figure looks adequate. Horizontal territory and sight-line control are central to mbuna care. Mixed-species Malawi systems often need more space and more advanced stocking than a species-focused group. If you are adapting an established aquarium, assess its actual free water volume after rockwork, not just the manufacturer's nominal capacity.
| Planning factor | Why it matters | Better approach |
|---|---|---|
| Tank length | Allows separate territories and escape routes | Prioritise a long footprint over height |
| Rock displacement | Reduces actual water volume | Size filtration and stocking for the finished layout |
| Existing fish | Add biological load and social pressure | Assess the whole community before ordering |
| Male count | Can increase territorial conflict | Monitor hierarchy and keep a separation plan |
| Mixed mbuna | Creates extra diet and aggression variables | Choose species by behaviour, size and food needs |
Use inert or Malawi-appropriate rock arranged into multiple stable structures rather than one central pile controlled by a single fish. Create caves with more than one exit, narrow passages and broken lines of sight. Secure heavy pieces on a stable base before adding deep sand; mbuna may excavate underneath decorations and can destabilise poorly supported stones.
Sand or fine rounded gravel works well around the rockwork. Leave some open frontage for observation and feeding, but make sure a retreating fish can move behind a barrier without entering another dead end. Tough epiphytes may survive if attached securely, although a Saulosi aquarium should be designed as a rock habitat first rather than relying on delicate planting for shelter.
The supplier's practical range is 24-26 C, pH 7.5-8.5 and 10-23 dGH. FishBase gives a broader reference range of 23-27 C, pH 7.4-8.4 and 7-30 dH. For this product, aim for the narrower supplier range unless an established aquarium and reliable source justify a careful alternative. Stability is more important than chasing a decimal point with repeated chemical additions.
| Parameter | Working target | Management note |
|---|---|---|
| Temperature | 24-26 C | Use a guarded heater and separate thermometer |
| pH | 7.5-8.5 | Keep alkaline and stable; avoid abrupt correction |
| General hardness | 10-23 dGH | Test source water before changing mineral chemistry |
| Ammonia | 0 | Any detectable result needs immediate investigation |
| Nitrite | 0 | Any detectable result is unsafe |
| Nitrate | Kept consistently low | Control with stocking, feeding and water changes |
Test tap water and aquarium water with dependable kits. If your source water is soft or acidic, research a repeatable remineralisation method before buying the fish. Do not create daily pH swings by adding unmeasured buffers. Changes in hardness and dissolved solids should be made gradually and consistently across water changes.
Saulosi are active fish commonly kept in groups, so the filter must handle both solid waste and dissolved biological load. Use generous mechanical and biological filtration, keep intakes protected, and maintain strong surface movement for gas exchange. The natural upper-reef association with stronger current supports an oxygen-rich aquarium, but fish should still have sheltered zones where they can rest without fighting continuous flow.
Filter turnover figures on a box are not the same as real flow after media, pipework and head height. Judge the system by water tests, debris accumulation and fish behaviour. Clean mechanical media before it clogs, but preserve biological media and never wash mature filter material in untreated tap water. Keep a battery air pump or another emergency aeration plan for power interruptions.
The aquarium must be biologically mature enough to process ammonia before livestock arrives. Clear water does not prove that a tank is cycled. Confirm that ammonia and nitrite remain at zero under an appropriate test load, and understand how the filter will be maintained. A new rockscape can still have an immature biological filter even when it looks complete.
Do not solve an uncycled tank by buying bottled products and adding fish immediately without test evidence. If the aquarium is not ready, delay the livestock order. Our aquarium care planner can help organise recurring testing and maintenance, but the keeper remains responsible for interpreting results and acting on them.
Saulosi are territorial cichlids. A dominant male may patrol a chosen rock face, display, chase rivals and court receptive females. Females and juveniles also take part in the hierarchy. This is normal cichlid behaviour up to a point, but repeated trapping, torn fins, refusal to feed or a fish confined to one corner indicates that the social plan is failing.
There is no universal stocking formula that turns unsexed fish into a stable group. Hobby advice often mentions one male with several females, but a retailer cannot create that ratio from unsexed size grades. Multiple males may coexist in a sufficiently large and carefully structured group, or one may become relentlessly dominant. Have a mature spare aquarium, divider or safe rehoming route available before problems occur.
Two fish are simply two unsexed fish. They may become two males, two females or one of each, and one male plus one female can expose the female to concentrated attention. Group composition must be observed and managed rather than assumed from order quantity.
Start with the finished aquarium, not a target head count. Map the main rock territories, estimate the biological load at adult size and decide what you will do if more than one male matures. Adding several juveniles can offer social flexibility, but it is not a guarantee of a particular sex ratio. Avoid repeatedly adding single newcomers to a settled dominant group without a planned introduction method.
Rearranging some rockwork immediately before an introduction can disrupt established territorial boundaries, although the structure must remain stable. Dim lighting, close observation and multiple feeding points can help during the first days. If aggression remains focused, remove the victim or aggressor rather than waiting for serious injury.
| Observation | Likely meaning | Keeper response |
|---|---|---|
| Brief display and retreat | Normal hierarchy communication | Continue monitoring |
| One fish controls food | Resource and territory imbalance | Use multiple feeding points and review stocking |
| Fish pinned behind equipment | Insufficient refuge or severe targeting | Separate promptly and redesign barriers |
| Persistent torn fins | Conflict is causing physical harm | Separate, test water and assess wounds |
| Sudden colour loss | Could be stress, hierarchy or illness | Check behaviour and water before diagnosing |
The simplest care plan is a species-focused Saulosi aquarium. In a mixed Malawi display, choose companions with compatible hard-water needs, adult size, feeding requirements and levels of aggression. Similar blue-barred or yellow mbuna may increase rivalry or create identification and hybridisation problems. Peacocks and haps often need different feeding and social arrangements, so combining them is not automatically appropriate.
Avoid small peaceful community fish, long-finned slow species, soft-water fish and any animal likely to be bullied or eaten. Do not add a pleco, loach or catfish as a cleaning tool without researching its own water, diet, adult size and defensive behaviour. Browse the Lake Malawi and Victoria cichlid collection to compare species, then verify each candidate rather than matching by colour alone.
Related products can illustrate the range but are not automatic tank-mate endorsements. Coral Red Saulosi needs careful identity and hybridisation consideration. Yellow Lab Cichlid and Yellow Elongatus each have their own social and dietary requirements. Use the wider African cichlid collection for comparison, not as a list of guaranteed companions.
FishBase describes Saulosi picking and nibbling loose material from the biocover on rocks. That layer is often called aufwuchs and can include algae, microorganisms and organic material. This feeding ecology supports a mbuna diet with substantial plant and algal content, but it does not justify reducing the species to the word herbivore or feeding only one vegetable ingredient.
The jaw action and repeated grazing behaviour are as important as any one ingredient. In the aquarium, offer appropriately sized food that encourages controlled feeding without filling the water with excess dust. Natural algae on safe rock can support grazing behaviour, but the fish should still receive a complete prepared diet.
Use a reputable complete mbuna flake or small pellet with meaningful plant or algal ingredients as the staple. Feed small portions that are consumed promptly, observing whether shy fish also receive food. One or two measured meals may suit established adults; small juveniles can be offered smaller portions more frequently when water quality is closely controlled. The correct amount depends on fish size, group size, food density and filtration, so a fixed number of pellets is misleading.
Avoid sudden heavy meals of rich animal tissue and do not use mammal meat. Any supplemental food must fit the species and the complete weekly diet. Remove leftovers, monitor faeces and body shape, and reduce feeding while investigating any unexplained swelling or loss of appetite. Fasting is not a cure for poor water quality or disease.
| Food role | Practical choice | Watch for |
|---|---|---|
| Daily staple | Complete mbuna food with plant/algal content | Appropriate particle size and measured portions |
| Behavioural grazing | Safe mature rock surfaces | Not a substitute for complete nutrition |
| Supplement | Species-appropriate vegetable or aquatic ingredient | Do not let supplements unbalance the diet |
| Avoid | Mammal meat and uncontrolled rich meals | Digestive stress and water pollution |
Test water on a schedule, change an appropriate portion regularly and use dechlorinator for replacement tap water. Match replacement water temperature and mineral chemistry closely enough to avoid a sudden shift. Vacuum accessible waste while preserving useful biological surfaces. The required water-change volume depends on nitrate accumulation, stocking and feeding rather than a universal weekly percentage.
Record ammonia, nitrite, nitrate, pH and any relevant hardness readings. A simple log exposes gradual drift before fish show symptoms. Inspect filters, heaters, air lines and rock stability during maintenance. Never dismantle all filtration and deep-clean the whole aquarium on the same day.
Finish the aquarium and test it before dispatch day. Check the delivery window, make sure someone can receive the parcel and keep the route from door to aquarium clear. Have a net, clean bucket, dimmable light and the order details ready, but do not open bags repeatedly or place them in direct sun.
Read our current live-fish delivery information before ordering because dispatch days, eligible areas and guarantee requirements can change. The Live Arrival Guarantee protects eligible orders when its reporting steps are followed; it does not replace the need for a cycled, compatible aquarium. If your postcode or timing is uncertain, contact Tropical Fish Co before checkout.
Follow the instructions supplied with the order and use the acclimation timer to keep the process deliberate. Transport water may differ from aquarium water, so avoid improvised, excessively long procedures. Do not add shipping water to the display unless the supplied method specifically requires it.
Keep aquarium lighting low after introduction and let the fish find shelter. Brief hiding or subdued colour can be normal after transport. Watch breathing, balance and interactions without repeatedly disturbing the rockwork. Offer only a small first meal after the fish has settled and skip it if the fish is not ready.
A separate cycled quarantine aquarium allows observation without exposing an established display. Match the hard, alkaline conditions, provide inert shelters and use dedicated equipment. Observe appetite, respiration, faeces, skin, fins and swimming. Quarantine length should reflect your existing biosecurity plan and professional advice rather than a single promise that covers every pathogen.
Do not medicate automatically. Some treatments interact with water chemistry or filtration, and several different problems can produce similar symptoms. Test water first, document signs and seek an aquatic veterinarian or experienced fish-health professional when the cause is uncertain. Never share wet nets or siphons between quarantine and display systems without disinfection.
A settled Saulosi should be alert, balanced and responsive, with steady breathing and fins that are not continually clamped. Appetite, colour and activity vary with hierarchy, so judge the whole pattern. A subordinate fish can be healthy but less brightly coloured; a blue male can still be ill. Compare each fish with its normal behaviour rather than relying on colour intensity alone.
| Sign | Possible causes | First response |
|---|---|---|
| Gasping or rapid breathing | Low oxygen, ammonia, nitrite, gill irritation or disease | Test water and increase safe aeration |
| Refusing food | Travel stress, aggression, water problem or illness | Check environment and isolate if targeted |
| Swollen abdomen | Overfeeding, constipation, reproductive state or disease | Do not guess; review diet, water and professional advice |
| Frayed fins | Fighting, abrasion or infection | Remove the social cause and assess treatment need |
| Constant hiding | Normal settling, inadequate cover, bullying or illness | Observe interactions and test water |
Saulosi are maternal mouthbrooders. After spawning, a female may hold developing eggs and fry in her mouth and can refuse food while carrying. A fuller throat area and repeated chewing-like movements can be clues, but do not repeatedly net or handle a suspected holding female. Stress can cause egg loss or premature release.
This listing does not sell a breeding pair, and breeding should not be the reason for assuming sex from colour. If you intend to maintain a pure line, identify every adult carefully, prevent crosses with similar mbuna and keep origin records. Fry from uncertain parentage should never be distributed under a confident pure-species label.
FishBase currently reports the wild species as Critically Endangered, based on the referenced IUCN assessment. That status describes the natural population; it does not prove the commercial origin of an individual fish. Our supplier record does not state wild-caught, captive-bred or filial generation, so this page makes no unsupported origin claim.
Responsible aquarium keeping still matters. Maintain species identity, avoid careless hybrid production and rehome unwanted fish through a suitable aquarist or retailer. Never release aquarium fish, water, plants or eggs into a pond, stream or drain where organisms could reach the environment. Conservation language should encourage accurate, accountable husbandry rather than turn a threatened status into a sales slogan.
The gallery contains one yellow source photograph and four illustrative aquarium scenes. They are retained to show body form, yellow juvenile/female-type presentation and possible display contexts. They do not show the exact fish that will be dispatched. The two-fish scene shows two yellow illustrative Saulosi; it is not evidence of a bonded pair or a confirmed male-and-female combination.
A mature dominant blue-barred male is not represented in the current gallery, so use the written colour guide rather than expecting every fish to match the yellow images forever. Natural shade and barring can change with age, hierarchy, lighting and stress. No photograph can guarantee the mature colour of an unsexed juvenile.
| Feature | Saulosi | What to compare in alternatives |
|---|---|---|
| Adult size | Compact, maximum recorded 8.6 cm TL | Some mbuna and haps become much larger |
| Colour pattern | Yellow females/juveniles; dominant males blue-barred | Other species may not show sex-linked colour change |
| Habitat | Rock-associated upper reef | Peacocks may use sand/open zones differently |
| Feeding style | Picks and nibbles biocover | Predatory or insect-feeding species need another diet |
| Social risk | Territorial mbuna | Peaceful community fish are not equivalent |
Saulosi is a good candidate for an aquarist who specifically wants a compact mbuna group and is prepared to manage rockwork, hard water and hierarchy. It is a poor impulse purchase for a small mixed tropical tank. Compare the care burden, not only the colour or current fish size.
The product options let you choose a size grade without putting trade codes into the customer title. Current price, availability and any quantity offer are shown in the live buy box, so this care guide does not hardcode figures that may change. Select the grade and quantity deliberately, remembering that quantity does not control sex.
Eligible live-fish orders are covered by our Live Arrival Guarantee when the published conditions and reporting steps are followed. First-time customers can also check the current WELCOME10 terms at checkout for 10% off an eligible first order. Promotional eligibility can change, so the live checkout and policy pages are authoritative.
This page separates supplier product facts from external species evidence. Size grades and the 24-26 C, pH 7.5-8.5, 10-23 dGH working range come from the supplier record. Current taxonomy and type locality were checked against the California Academy of Sciences Catalog of Fishes. Maximum recorded length, natural habitat, feeding method and conservation status were checked against FishBase.
Sources support species-level guidance, not a promise about the sex, origin, exact adult colour or future behaviour of an individual fish. If your aquarium differs materially from the conditions described here, seek species-specific advice before ordering.
The first mistake is choosing the fish for colour before planning its social system. A yellow juvenile may later become a blue territorial male, while a hoped-for blue male may remain yellow for a long time because it is immature or subordinate. Build a group that can be managed regardless of the eventual colour mix. The second mistake is treating the word dwarf as permission to use a short aquarium. Saulosi are compact, but their need to display, retreat and establish rock territories remains substantial.
Another common error is copying a fixed male-to-female formula onto unsexed juveniles. A target ratio can guide later management, but it cannot be guaranteed at checkout. Observe development, retain a separation option and be prepared to rehome surplus males responsibly. Likewise, adding one fish to an established mbuna hierarchy is not always gentler than adding several; the lone newcomer can receive all of the attention. The correct introduction depends on the existing group and available space.
Water chemistry is also easy to overcomplicate. Stable, suitable source water managed by a repeatable method is safer than daily additions intended to hit one ideal pH. Measure pH and hardness before choosing buffers or mineral salts, and prepare replacement water consistently. Finally, do not mistake appetite for unlimited food tolerance. Mbuna can feed eagerly even when the portion is excessive. Small complete meals, low waste and regular body-condition checks are better than feeding until interest stops.
| Mistake | Why it fails | Better decision |
|---|---|---|
| Buying by yellow or blue colour alone | Age and hierarchy can change appearance | Plan for either sex and colour outcome |
| Using a short tank because the species is compact | Territorial behaviour needs horizontal escape routes | Prioritise footprint and structured rockwork |
| Assuming order quantity creates a sex ratio | Size options are unsexed | Observe development and keep a separation plan |
| Chasing pH with daily additives | Rapid swings create more stress than a modest stable value | Use tested, repeatable water preparation |
| Feeding until fish stop responding | Enthusiastic feeding can exceed nutritional and filter needs | Use measured portions and monitor condition |
It is for one fish per selected unit. The quantity in the basket is the number of fish. No pack, pair or sex ratio is implied.
No. The size options are not sexed. Contact us before ordering if confirmed sex is essential, but availability cannot be assumed.
Not necessarily. Juveniles and females are generally yellow, and immature or subordinate males can also remain yellowish. Blue vertical barring is associated with a dominant mature male.
No. Yellow is common in females and juveniles, but colour alone is not a reliable guarantee because social position can affect male colour development.
XL is the supplier's larger grade. It is not an exact centimetre promise and does not guarantee sex, maturity or colour.
FishBase records 8.6 cm maximum total length. Spatial needs are greater than that number suggests because this is a territorial group-living cichlid.
For a managed group, use a long aquarium around 120 cm and approximately 200 litres or larger as a cautious starting point. Finished water volume, rockwork, stock and male count can require more.
The supplier guide is 24-26 C, pH 7.5-8.5 and 10-23 dGH, with zero ammonia and nitrite. Keep conditions stable rather than repeatedly chasing numbers.
No. They are territorial mbuna. They need a planned hard-water cichlid aquarium, visual barriers and active hierarchy management.
Two unsexed fish are not a pair. They could become any sex combination, and concentrated aggression can make a two-fish arrangement unsafe.
Sometimes, in a sufficiently large and carefully planned system. Compare adult size, aggression, diet, colour similarity and hybridisation risk for every species before mixing them.
Use a complete mbuna food with substantial plant or algal content, offered in small measured portions. Natural biocover grazing does not mean feeding only vegetables or treating the species as a strict one-ingredient herbivore.
No. They are species reference and illustrative images. The exact fish will vary, and the gallery does not currently show the mature blue-barred male presentation.
The supplier record does not state captive-bred, F1 or wild origin, so we do not make an unsupported claim. Contact us if documented origin is essential.
The wild species is reported as Critically Endangered. That makes accurate identity, responsible rehoming and avoidance of careless hybrid distribution especially important.
Eligible orders are covered by the Live Arrival Guarantee when the current delivery conditions and reporting steps are followed. Read the delivery page before checkout.
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