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No federal permit to keep

Blue-eyed Tropheus

Tropheus brichardi

Fishes › Cichlids (Cichliformes) › Cichlidae (Cichlids)

Tropheus brichardi is a species of cichlid endemic to Lake Tanganyika where it is found in areas with substrates of solid rock in the central portion of the lake.

Aquarium hobby

Experience: Intermediate

📷No free-license photo yet

FamilyCichlids

Adult lengthup to 4.5 in

WaterFreshwater

Care at a glance

Species-specific aquarium care

Tank: At least 24 in long and 12 in front to back for one adult (adults commonly reach about 3.9 in / 10 cm).
Water: Freshwater.
Temperature: 75–79°F (range recorded for this species).
pH: 7–9.
Hardness: 10–15 dGH.
Layout: Lives on or near the bottom: floor space and hiding places matter more than height.

Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.

Care guide

Species care notes

Water: hard, alkaline water, 73–81 °F, pH 8–9.5, 8–25 dGH.
Behaviour: temperament peaceful; a shoaling fish best kept in a group of six or more.
Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

Setup: “Many aquarists keep Tropheus in bare setups to reduce territorial behaviour, but they can also be maintained in decorated aquaria.”
Diet: “It will accept most foods offered but vegetable matter in the form of spirulina flakes, blanched spinach, nori etc.”
Tankmates: “It has a somewhat dubious reputation for aggressive behaviour but this is undeserved.”

From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167

Group care guide

Lake Tanganyika cichlids

Applies to most species in this group. Habitat: Rocky reefs, shell beds and sand of Lake Tanganyika. Individual species can differ, so compare with the species numbers above and the linked sources.

Housing & setup

Use species-specific alkaline-water parameters and stable, well-oxygenated conditions. For N. multifasciatus, Seriously Fish gives pH 7.5–9.0 and general hardness 8–25 dGH.
Shell-dwellers need beds of empty snail shells; rock-dwellers like Julidochromis need stacked rockwork; Tropheus need large groups and spacious tanks.

Sources 117 119 164 118 256 273

Climate & lighting

Water

76–81°F

Sources 117 119 164 118 256 273

Diet

Tropheus moorii needs a vegetable-based staple with small suitable live/frozen supplements. Other Tanganyikans need their own feeding plan; shell-dweller and predator diets differ.

Sources 117 119 164 118 256 273

Social life

Often pair- or colony-forming and territorial; research each genus.

Sources 117 119 164 118 256 273

Health watch

Tropheus are prone to bloat on rich foods; sudden water changes stress Tanganyikans.

Sources 117 119 164 118 256 273

Understanding the animal

About this animal

This species can reach a length of 10 cm (3.9 in). It can be found in the aquarium trade.

Quoted from the Wikipedia article “Tropheus brichardi” (CC BY-SA 4.0) 174

In the wild

From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.¹

Where it lives	Lives in freshwater. Stays near the bottom. Do not form schools. Occurs over solid rock, either anchored and part of the hard core of the coast, interlocking rubble, or even sandstone slabs lining a beach but not loose pebbles rolling about in the surf or silted habitats.
Water it lives in	Freshwater, 75–79 °F (24–26 °C), pH 7–9, hardness 10–15 dH.
Climate	Tropical climate.
Behavior to plan for	Breeding: external brooders.

What this means for care

Keep water within its wild range, 75–79 °F.

FishBase species summary: Tropheus brichardi

Native climate (measured)

Warm-season highs	about 85°F (up to 90°F in the hottest sampled areas)
Cool-season lows	about 60°F (down to 54°F in the coldest sampled areas)
Average temperature	65–77°F across sampled records
Relative humidity	70–74% on average (driest month about 58%)
Rainfall	about 1096 mm a year

Measured at 10 wild occurrence records sampled against WorldClim 2.1 climate data (1970–2000 averages). Air conditions in the range are ecological context, not enclosure settings: microhabitats such as burrows, leaf litter or basking rocks can be cooler, warmer or more humid.

From the sources

Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.

Overview	Tropheus brichardi is a species of cichlid endemic to Lake Tanganyika where it is found in areas with substrates of solid rock in the central portion of the lake. This species can reach a length of 10 cm. It can be found in the aquarium trade. The specific name honours Pierre Brichard (1921–1990) the aquarium fish exporter who provided the authors with the type. — Wikipedia (community-edited)
Where it lives	Home ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase
Reproduction	Females are mouthbrooders. — FishBase
Biology	Occurs over solid rock, either anchored and part of the hard core of the coast, interlocking rubble, or even sandstone slabs lining a beach but not loose pebbles rolling about in the surf or silted habitats. — FishBase

Data and studies

The numbers

Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.

Adult length

Average of sources4.2in

FishBase 1643.9

Seriously Fish species profiles 1674.5

Maximum recorded length. Measured as total length. Fish in home aquariums often stay smaller than wild records.

Water temperature

Average of sources74–80°F

FishBase 16475–79

Seriously Fish species profiles 16773–81

Range the species tolerates in nature; aim for the middle.

pH

Average of sources7.5–9.2

FishBase 1647–9

Seriously Fish species profiles 1678–9.5

Water hardness

Average of sources9–20dGH

FishBase 16410–15

Seriously Fish species profiles 1678–25

Federal legal snapshot

No federal permit to keep

No federal law singles out this species for private keepers. State and local rules still apply.

State law decides most of it. Each state sets its own permits and bans for exotic, native, venomous and dangerous animals, and cities and counties can be stricter. Find your state agency →

Not covered by the Animal Welfare Act

The Act only covers warm-blooded animals. Reptiles, amphibians, fish and invertebrates have no federal care standards, even at licensed facilities; state and local rules may still apply.

Kept in captivity?

Every species on this site needs evidence that people actually keep it. For this one:

Has a Seriously Fish aquarium species profile
FishBase records it in the aquarium trade (Aquarium=commercial; AquariumFishII=based mainly on breeding)

Sources for this sheet

FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
Merck Veterinary Manual: Management of aquarium fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
Merck Veterinary Manual: Types and features of aquatic systems Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
Merck Veterinary Manual: Nutritional diseases of fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
Seriously Fish — Neolamprologus multifasciatus Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
Seriously Fish — Tropheus moorii Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.