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White Spotted Cichlid Care Guide – Tank Setup, Feeding and Breeding

ByTankora

Quick summary

The White Spotted Cichlid is a demanding species best suited to experienced keepers who can provide a 300+ litre tank, stable alkaline Lake Tanganyika water conditions, and a large group of 12 to 15 or more fish to spread out aggression. It also requires a strictly herbivorous diet, as meaty foods can cause fatal “Tropheus bloat,” so it is not a great fit for beginners or anyone unwilling to commit to precise water and feeding routines.

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In this guide:

Introduction

Tropheus duboisi, widely known as the White Spotted Cichlid, is one of the most visually striking and behaviourally fascinating species to emerge from the waters of Lake Tanganyika in East Africa. Juvenile fish are instantly recognisable – jet black bodies covered in a constellation of bright white spots that give them an almost celestial appearance. As adults, the fish undergo a dramatic transformation, losing the spots in favour of a dark body with a prominent vertical band of colour (typically white or yellow, depending on the geographic variant) just behind the head. This metamorphosis alone makes Tropheus duboisi a captivating species to raise from a young age.

First described by Marlier in 1959, this species belongs to the genus Tropheus, a group renowned among cichlid enthusiasts for their complex social dynamics and strict dietary requirements. Tropheus duboisi is often considered the most beginner-friendly of the Tropheus species, though “beginner-friendly” is a relative term within this demanding genus. Keeping them successfully requires a solid understanding of their herbivorous diet, their need for large groups to diffuse aggression, and the precise water chemistry of their native Lake Tanganyika habitat.

Despite the challenges, Tropheus duboisi has maintained a devoted following in the hobby for decades. Their intelligence, constant activity, and endlessly entertaining social behaviour make them one of the most rewarding African cichlids to keep. This guide covers everything you need to know to provide outstanding care for this remarkable species.

Quick Stats

Scientific name Tropheus duboisi
Common names White Spotted Cichlid, Duboisi Cichlid, Blue-Faced Duboisi, White Band Cichlid
Family Cichlidae
Origin Lake Tanganyika, East Africa (Democratic Republic of the Congo, Burundi, Tanzania)
Adult size 12-14 cm
Lifespan 8-12 years
Difficulty Difficult
Breeding difficulty Moderate
Temperature 24-27 °C
pH range 7.8-9.0
General hardness (GH) 8-20 dGH
Carbonate hardness (KH) 10-18 dKH
Minimum tank size 300 litres
Conservation status Least Concern

Appearance

The appearance of Tropheus duboisi changes so dramatically from juvenile to adult that one could easily mistake the two life stages for entirely different species. Juveniles are covered in a deep, velvety black colouration that serves as the canvas for dozens of small, brilliant white spots scattered across the body, dorsal fin, and sometimes the anal fin. These spots begin to fade as the fish matures, typically disappearing entirely by the time the fish reaches around 6-8 cm in length.

Adult Tropheus duboisi develop a darker, more uniform colouration across the body, ranging from charcoal grey to near-black. The most prominent feature of the adult is a broad vertical band that encircles the body just behind the pectoral fin area. Depending on the geographic variant, this band can be white, cream, or bright yellow. The head often takes on a bluish or greyish hue, which has led to the alternative common name “Blue-Faced Duboisi.” The lips are typically thick and fleshy, an adaptation for their specialised algae-scraping feeding behaviour.

The body shape is typical of the Tropheus genus – deep, laterally compressed, and somewhat stocky. The dorsal fin extends for most of the back and features a combination of hard spines anteriorly and softer rays posteriorly. Males and females are remarkably similar in appearance, making visual sexing extremely difficult. Males may grow marginally larger and develop a slightly more robust head profile, but these differences are subtle and unreliable for definitive sex identification. Venting remains the most accurate method for sexing this species.

The overall impression of an adult Tropheus duboisi is one of understated elegance – the dark body offset by the striking band creates a clean, graphic appearance that stands out beautifully against a rocky aquascape. A colony of these fish grazing across rocks is a genuinely arresting sight.

Varieties and Morphs

Tropheus duboisi exists in several geographic variants, each collected from distinct rocky shoreline locations around Lake Tanganyika. While these are not captive-bred colour morphs in the traditional sense, they are traded under distinct locality names and display noticeable differences in band colour and overall appearance, making them important to distinguish for hobbyists.

The Maswa variant is arguably the most commonly encountered form in the aquarium trade. Adults display a broad, bright white band against a very dark body, with the head typically showing a blue-grey cast. This is often what hobbyists picture when they think of Tropheus duboisi, and it remains the most widely bred variant in captivity.

The Karilani variant, sometimes sold as the “Narrow Band” Duboisi, features a notably thinner white or cream-coloured band compared to the Maswa form. The body colouration tends to be a slightly lighter charcoal. This variant is less commonly available but is prized by Tropheus specialists for its subtle refinement.

The Kigoma variant is distinguished by a yellow or golden band rather than the white band seen in other forms. This warm-toned band gives the fish a distinctly different aesthetic, and the Kigoma form is highly sought after by collectors. Juveniles of this variant are indistinguishable from other Tropheus duboisi juveniles, with the yellow band only emerging as the fish matures.

The Bemba variant is another form that appears in specialist collections, typically displaying an intermediate band colour that can appear creamy white to pale yellow. Each geographic variant should be kept separately and never crossbred, as maintaining the genetic integrity of these locality-specific populations is considered a responsibility within the Tropheus-keeping community.

Natural Habitat

Tropheus duboisi is endemic to Lake Tanganyika, the second largest lake in Africa by volume and one of the oldest freshwater lakes on earth. This ancient rift lake stretches across the borders of the Democratic Republic of the Congo, Burundi, Tanzania, and Zambia, and its waters are characterised by exceptional clarity, high mineral content, and remarkable chemical stability. Tropheus duboisi populations are found primarily in the northern and central portions of the lake.

In nature, Tropheus duboisi inhabits the shallow to intermediate rocky zones of the lake, typically at depths ranging from 3 to 15 metres. The substrate in these zones consists of large boulders, rocky outcrops, and slabs of stone covered in a thin biofilm of algae known as aufwuchs. This aufwuchs layer – a complex community of algae, diatoms, microorganisms, and associated organic matter – forms the primary food source for Tropheus duboisi. The fish spend the majority of their active hours methodically grazing across rock surfaces, scraping at this biological film with their specialised mouths.

The water in Lake Tanganyika is remarkably alkaline, with a pH typically between 8.6 and 9.2 at the surface. General hardness values are high, and the water temperature remains relatively stable year-round, generally ranging from 24 to 28 degrees Celsius. The lake’s enormous volume ensures that water chemistry fluctuations are minimal, meaning the native inhabitants of Tanganyika, including Tropheus duboisi, have evolved with very little tolerance for rapid changes in water parameters.

Tropheus species are notably sedentary in the wild. Individual populations are isolated along specific stretches of rocky coastline, separated from neighbouring populations by expanses of sandy substrate that the fish rarely cross. This geographic isolation has driven the evolution of the distinct colour variants discussed earlier. Understanding this habitat is crucial for replicating appropriate conditions in captivity.

Tank Size and Setup

A minimum tank size of 300 litres is recommended for a colony of Tropheus duboisi, but larger is always better with this species. A tank measuring 120 cm or more in length provides the horizontal swimming space and territorial footprint that a group requires to manage their social hierarchy. Many experienced keepers advocate for 400-500 litre tanks as a more practical minimum, particularly for colonies of 12 or more individuals.

Tropheus duboisi must be kept in groups of at least 12 to 15 individuals. Keeping fewer than this almost invariably results in severe bullying, with dominant fish relentlessly persecuting subordinates. In a sufficiently large group, aggression is distributed across many targets, preventing any single fish from bearing the brunt of territorial behaviour. Some seasoned keepers maintain colonies of 20 or more in larger tanks with excellent results.

The aquascape should be built around a generous quantity of rockwork. Stacked stones, boulders, and rocky formations should create a complex network of caves, crevices, and line-of-sight breaks. The goal is to provide numerous hiding spots and territorial boundaries so that subordinate fish can escape aggression and dominant fish can establish and defend small territories without controlling the entire tank. Ensure all rockwork is stable and securely positioned, as Tropheus are active fish that can dislodge poorly placed stones.

Substrate choice should lean towards sand or fine gravel, which mirrors the natural habitat and allows the fish to exhibit natural grazing behaviour. Aragonite sand is a popular choice as it also helps buffer the water towards the alkaline pH values Tropheus require. Avoid sharp or coarse substrates that could injure the fish as they forage.

Live plants are generally not included in Tropheus duboisi setups. The alkaline, hard water is unsuitable for most common aquarium plants, and the fish themselves will readily consume or uproot soft-leaved vegetation. If decoration beyond rockwork is desired, consider using Anubias species attached to stones, as their tough leaves are more resistant to grazing, though even these may suffer some damage.

Lighting should be moderate. While bright lighting can encourage some algae growth on rocks (which the fish will happily graze), excessively intense lighting without appropriate nutrient management can lead to problematic algae blooms. A standard LED fixture on a timer providing 8-10 hours of light per day works well for most setups.

Water Parameters

Temperature 24-27 °C
pH 7.8-9.0
General hardness (GH) 8-20 dGH
Carbonate hardness (KH) 10-18 dKH
Ammonia 0 ppm
Nitrite 0 ppm
Nitrate Below 20 ppm

Tropheus duboisi are adapted to the remarkably stable water chemistry of Lake Tanganyika, and they are notably intolerant of fluctuating conditions. Consistency is paramount. Sudden swings in pH, temperature, or hardness can cause severe stress, immune suppression, and death. The use of buffers – either commercial Tanganyika buffer salts or natural buffering substrates like aragonite and crushed coral – is strongly recommended to maintain stable alkaline conditions.

Water quality must be kept impeccable. Tropheus are particularly sensitive to elevated nitrate levels, and many experienced keepers aim to keep nitrate below 10 ppm rather than simply below 20 ppm. Regular partial water changes of 25-40% per week are essential, and the replacement water should be closely matched in temperature and chemistry to the tank water before being added. Large water changes with mismatched parameters are a common cause of health crises in Tropheus colonies.

If your tap water is soft and acidic, you will need to reconstitute it with appropriate mineral salts to achieve the required hardness and alkalinity. There are several commercial products designed specifically for Tanganyika cichlid setups that simplify this process. Testing water parameters weekly, especially in the early months of establishing a colony, is a sensible practice.

Filtration and Equipment

Given the sensitivity of Tropheus duboisi to water quality, robust filtration is non-negotiable. An external canister filter rated for at least 1.5 to 2 times the volume of the tank is the preferred choice. For a 300-litre setup, a filter rated for 450-600 litres of capacity provides an adequate safety margin. Many keepers run two filters on a Tropheus tank for redundancy and increased biological filtration capacity.

Biological filtration is the most critical component. The filter should be loaded with high-quality biological media such as ceramic rings, sintered glass, or similar porous materials that provide maximum surface area for nitrifying bacteria. Mechanical filtration in the form of foam pads or filter floss should be cleaned or replaced regularly to prevent the accumulation of organic waste, which can degrade water quality.

Water movement should be moderate to strong. In Lake Tanganyika, there is consistent water circulation, and Tropheus appreciate a degree of current in the aquarium. Positioning the filter outlet to create gentle flow across the rockwork mimics natural conditions and helps oxygenate the water. Additional powerheads or wavemakers can be used in larger tanks to ensure there are no stagnant zones.

A reliable heater with a thermostat is essential to maintain the stable temperature these fish require. A heater guard is advisable, as the active and sometimes boisterous behaviour of Tropheus can lead to contact with exposed heater elements. For larger tanks, two heaters of lower wattage are preferable to a single high-wattage unit, as this provides both redundancy and more even heat distribution.

An air pump with an airstone is a useful addition to any Tropheus tank. Increased surface agitation promotes gas exchange, helping to maintain high dissolved oxygen levels. This is especially important in warmer water, which holds less dissolved oxygen than cooler water.

Diet and Feeding

Diet is the single most critical aspect of Tropheus duboisi care, and getting it wrong is the fastest route to losing fish. In the wild, Tropheus duboisi are obligate herbivorous grazers, spending the vast majority of their day scraping aufwuchs from rock surfaces. Their digestive system is specifically adapted to process a high-fibre, low-protein, plant-based diet. Feeding them foods that are high in animal protein or fat – particularly bloodworms, tubifex, brine shrimp, or beef heart – can cause a potentially fatal condition known as “Tropheus bloat,” a form of gastrointestinal distress that is extremely difficult to treat and frequently lethal.

The staple diet should consist of high-quality spirulina-based flakes or pellets specifically formulated for herbivorous African cichlids. Look for foods where spirulina or other plant matter is listed as the primary ingredient. Several reputable brands produce Tropheus-specific foods, and these are well worth seeking out. Pellets should be appropriately sized for the fish – small to medium pellets are generally ideal for adult Tropheus duboisi.

Supplementary foods can include blanched vegetables such as courgette (zucchini), spinach, cucumber, and shelled peas. Nori (dried seaweed sheets) can be clipped to the glass or weighted down on rocks and provides an excellent source of fibre and nutrients. These vegetable supplements should be offered several times per week to add variety and ensure a well-rounded nutritional intake.

Feeding frequency should be small meals offered two to three times per day rather than one large feeding. This approach mimics the natural grazing behaviour of the species and reduces the risk of digestive problems. Each feeding should be consumed within two to three minutes. Remove any uneaten food promptly to prevent it from decomposing and affecting water quality.

Encouraging natural algae growth on rocks within the tank provides the fish with an ongoing, biologically appropriate food source that they can graze on throughout the day. This supplemental grazing opportunity is beneficial for both their physical health and their psychological wellbeing, as it allows them to express natural foraging behaviour.

Behaviour and Temperament

Tropheus duboisi are highly social, intensely hierarchical, and endlessly active fish. Within a colony, a clear dominance structure is established, with one or two dominant males claiming the best territories – typically prime rocky outcrops near the centre of the tank. Subordinate males and females navigate this social landscape constantly, and low-level chasing and sparring are normal, everyday occurrences.

Aggression in Tropheus duboisi is a defining characteristic of the species and must be managed through appropriate husbandry rather than eliminated. The key to managing aggression is maintaining a sufficiently large group. In small groups of three to six fish, a dominant individual will focus its aggression on one or two targets, often harassing them to the point of severe stress or death. In a group of 15 or more, this aggression is spread thin, and no single fish is singled out for excessive persecution.

Despite their intra-species aggression, Tropheus duboisi are not generally destructive towards other species. They tend to be focused primarily on members of their own kind, and inter-species aggression is usually limited to mild chasing of fish that venture too close to a claimed territory. They are curious, alert, and will quickly learn to recognise their keeper, often rushing to the front of the tank at feeding time.

One important behavioural note: Tropheus duboisi are sensitive to disruptions in their social group. Adding or removing individuals from an established colony can destabilise the hierarchy and trigger intense aggression as a new pecking order is established. For this reason, it is generally best to acquire the entire colony at once and avoid making changes to the group composition wherever possible. If a fish must be removed (for illness, for example), reintroducing it later can be problematic, and the use of a divider or rearranging the rockwork to “reset” territories may be necessary.

These fish are diurnal and remain active throughout the daylight hours. They spend much of their time grazing on rock surfaces, interacting with colony members, and patrolling their territories. Watching a well-established colony of Tropheus duboisi is genuinely engrossing – the constant social interactions, displays, and mock confrontations are as entertaining as any reality television programme.

Tank Mates

Selecting tank mates for Tropheus duboisi requires careful consideration. Many experienced keepers maintain species-only tanks, and this approach is perfectly valid – a large colony of Tropheus duboisi in a well-designed rocky aquascape is a magnificent display in its own right. However, compatible tank mates can be introduced if the tank is large enough and the species chosen carefully. Ideal companions are other Lake Tanganyika species that occupy different ecological niches and are robust enough to coexist with the sometimes boisterous Tropheus. Never mix different Tropheus species or geographic variants in the same tank, as hybridisation and extreme aggression are likely outcomes.

Good tank mates

  • Julidochromis marlieri – A rock-dwelling Tanganyika cichlid that occupies tight crevices and largely stays out of the way of Tropheus activity.
  • Julidochromis regani – Another cave-dwelling species that coexists well due to its preference for small, defended territories deep within the rockwork.
  • Neolamprologus leleupi – A small, colourful Tanganyika cichlid that tends to stay close to its cave and rarely competes directly with Tropheus for resources.
  • Eretmodus cyanostictus – A bottom-dwelling goby cichlid from Tanganyika that occupies a completely different niche and typically coexists peacefully.
  • Synodontis petricola – A small, Tanganyika-native catfish that is active at night and occupies caves during the day, making it an excellent complementary species.
  • Synodontis lucipinnis – Similar to S. petricola, this dwarf catfish is peaceful and shares the same water parameter requirements.
  • Altolamprologus calvus – A laterally compressed predator of invertebrates that is too slow and specialised to compete with Tropheus.
  • Xenotilapia flavipinnis – A sand-dwelling species that occupies the open substrate and avoids the rocky zones Tropheus prefer.

Fish to avoid

  • Tropheus moorii – Another Tropheus species that will hybridise and engage in intense, damaging aggression with T. duboisi.
  • Malawi Mbuna – Require different water chemistry and their aggressive, competitive nature creates a stressful environment.
  • Cyphotilapia frontosa – A large, predatory cichlid that can easily consume smaller Tropheus and dominates tank space.
  • Oscar Fish – A large, aggressive New World cichlid completely incompatible in terms of temperament, size, and water requirements.
  • Neon Tetra – Far too small, requires soft acidic water, and would be severely stressed by the boisterous behaviour of Tropheus.
  • Guppy – Cannot tolerate the hard, alkaline water required by Tropheus and would be bullied relentlessly.
  • Betta Fish – Completely incompatible in terms of water chemistry, temperament, and flow requirements.
  • Common Pleco – Grows far too large, produces excessive waste, and may compete for algae resources and territory.

Breeding

Tropheus duboisi are maternal mouthbrooders, and breeding can occur readily in a well-maintained colony with stable conditions and a good diet. Sexing the fish visually is extremely difficult, which is one reason why purchasing a large group of juveniles and allowing them to mature together is the recommended approach – this naturally provides a mix of males and females.

Courtship is initiated by the dominant male, who selects a flat or slightly angled rock surface as a spawning site. The male displays to receptive females with lateral flaring, quivering movements, and intensified colouration. When a female is receptive, the pair will circle the spawning site together. The female deposits a small number of eggs – typically between 5 and 15 – on the rock surface and immediately turns to collect them in her mouth. Fertilisation occurs as she picks up the eggs, with the male presenting his egg spots (false egg markings on the anal fin) to stimulate the female to mouth at his vent, at which point she takes in sperm.

The female carries the developing eggs and fry in her buccal cavity for approximately 28 to 33 days. During this period, she will not eat, and her throat will appear visibly distended. It is important not to disturb brooding females, as stress can cause them to swallow or spit out the brood prematurely. Some keepers prefer to strip the fry from the mother at around day 20-25 using a gentle technique, raising the fry separately to maximise survival rates. However, allowing the female to carry to full term and release the fry naturally is also a viable approach, particularly if the tank has sufficient rockwork for the fry to find shelter.

Released fry are relatively large compared to many cichlid species and can immediately accept crushed spirulina flakes, powdered spirulina, and finely ground herbivore pellets. They should be fed small amounts several times daily. If raised within the colony tank, survival rates will be lower due to predation from other colony members, but some fry typically survive in a well-structured rockscape. For higher survival rates, fry can be raised in a separate grow-out tank with matching water parameters.

A healthy, well-fed female can breed every six to eight weeks, though it is important to ensure she has adequate time to recover and regain condition between broods. Overbreeding weakened females can lead to health problems and reduced fry viability.

Common Diseases

“Tropheus bloat” is the most significant and feared health concern for this species. Technically a form of gastrointestinal enteritis, bloat presents as swelling of the abdomen, loss of appetite, white stringy faeces, lethargy, and rapid breathing. It can progress from the first visible symptoms to death within 24 to 48 hours. The primary causes are dietary – feeding inappropriate high-protein or fatty foods, overfeeding, or sudden diet changes. Stress from poor water quality, aggression, or parameter instability can also trigger bloat. Treatment typically involves metronidazole administered in food or water, but prevention through correct diet and husbandry is far more effective than attempting a cure. Any fish showing symptoms of bloat should be isolated immediately, as the condition can appear to spread through a colony.

Ich (white spot disease) can affect Tropheus duboisi, particularly when fish are stressed by temperature fluctuations, transport, or introduction to a new environment. The classic white spot presentation is easy to identify. Treatment with elevated temperature (gradually raising to 30 degrees Celsius over 48 hours) combined with aquarium salt or a copper-based medication is generally effective, though care must be taken with dosing in the hard, alkaline water Tropheus require.

Hexamita (hole-in-the-head disease) is another condition occasionally seen in Tropheus, often associated with poor water quality and nutritional deficiencies. Small pits or lesions appear on the head and lateral line area. Improving water quality and diet, combined with metronidazole treatment, can resolve early cases.

Skin and gill flukes may occasionally affect Tropheus, presenting as excessive mucus production, flashing (rubbing against rocks), and laboured breathing. Praziquantel-based treatments are effective against flukes and are generally well-tolerated by Tropheus.

Prevention remains the cornerstone of health management for Tropheus duboisi. Maintaining pristine water quality, feeding an appropriate herbivorous diet, keeping the colony at sufficient numbers to manage aggression, and avoiding sudden changes to their environment will prevent the vast majority of health problems.

FAQs

How many Tropheus duboisi should I keep together?

A minimum of 12 to 15 individuals is strongly recommended, with many experienced keepers advising groups of 15 to 20 or more. Keeping fewer than 12 almost always results in severe bullying, as dominant fish concentrate their aggression on a small number of targets. In a larger group, aggression is distributed widely enough that no single fish is subjected to sustained harassment, leading to a healthier, less stressed colony overall.

Can I feed Tropheus duboisi bloodworms or other meaty foods?

No. Tropheus duboisi have a specialised herbivorous digestive system that cannot properly process high-protein, high-fat animal-based foods. Feeding bloodworms, tubifex, brine shrimp, or beef heart is one of the most common causes of the often-fatal condition known as “Tropheus bloat.” Stick exclusively to spirulina-based prepared foods and blanched vegetables to keep your colony healthy.

Can I mix different Tropheus species or variants in the same tank?

This is strongly discouraged. Different Tropheus species (such as T. duboisi and T. moorii) will hybridise, producing offspring that dilute the genetic integrity of both species. Different geographic variants of T. duboisi should also be kept separately for the same reason. Additionally, mixing Tropheus types often results in heightened aggression that can be difficult to manage even in very large tanks.

Why are my juvenile Tropheus duboisi losing their white spots?

This is entirely normal and expected. Tropheus duboisi undergo a dramatic colour change as they mature. Juveniles display the characteristic jet black body with white spots, but these spots gradually fade as the fish grows, typically disappearing by the time the fish reaches 6-8 cm. The adult colouration – a dark body with a prominent vertical band – then develops in its place. This metamorphosis is one of the most fascinating aspects of keeping this species.

How can I tell if my Tropheus duboisi is male or female?

Visual sexing of Tropheus duboisi is extremely unreliable. Males may be marginally larger and have a slightly more robust head profile, but these differences are subtle and inconsistent. The only dependable method is venting – examining the genital papillae of the fish. In females, the papilla is larger and more rounded, while in males it is smaller and more pointed. This is best performed by someone with experience, as the differences can be difficult to discern for beginners. Purchasing a large group of juveniles ensures a natural mix of sexes.

  • Tropheus moorii – The most well-known Tropheus species and a close relative with similar care requirements but even more colour variants.
  • Julidochromis marlieri – A popular Tanganyika rock-dweller that makes an excellent tank mate for Tropheus duboisi.
  • Neolamprologus leleupi – A colourful cave-dwelling Tanganyika cichlid compatible with Tropheus setups.
  • Synodontis petricola – A small Tanganyika catfish that is one of the best bottom-dwelling companions for Tropheus colonies.
  • Cyphotilapia frontosa – Another iconic Tanganyika cichlid with distinct care requirements worth understanding for broader Tanganyika biotope planning.

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