Furry Diary

Not furry, but we like them anyway.

Tropheus Duboisi

Tropheus duboisi Marlier, 1959

Also called White-spotted Cichlid, Duboisi, Duboisi Cichlid

SpeciesShort profile

From Endemic to the northern part of Lake Tanganyika, living patchily over rocky ground down to about 30 m, in populations such as Maswa, Karilani Island and Kigoma.12

At a glance the quick version

Length12 cm132
Sizesmall
Striking polka-dot youngsters
Colour change from juvenile to adult
Smaller than most Tropheus
31

Looks how to spot one

Deep-bodied algae-grazing cichlid

A compact, high-backed fish with a short rounded snout; its look changes completely as it grows up.32

Coloursjuveniles jet black with white or pale blue spotsadults blue-black with a yellow or white vertical bandregional forms3

Personality what they are like

Peaceful towards other species yet lively and competitive among its own, so it settles best in a sizeable group where squabbles are spread out.3

Daily activity how busy a day looks

An active grazer that works over rock surfaces for algae throughout the day.12

Grooming and care the hands-on bits

Needs pristine hard, alkaline water with frequent changes; introduce the whole group at once and do not mix regional forms.3

Home where they are happiest

At least 150 x 45 x 45 cm for a group of 15-20, with rockwork and open water. Temperature about 23-27 C, pH 8.0-9.5, hardness around 8-25 dGH.31

Food basics what goes in the bowl

A vegetable-based diet such as spirulina flakes, blanched spinach and nori, with only small amounts of live or frozen food and no red meats.31

Company who they like around

A group fish, ideally 15-20 together with several females for each male.31

The story where it all began

Georges Marlier described the species in 1959 and named it after Jean Dubois, a limnologist colleague who collected the type specimen. Its spotted youngsters have made it a prized fish among Tanganyika cichlid keepers.21

Fun facts for the dinner table

  1. 1

    Young fish are black with white or bluish spots, earning the name white-spotted cichlid.3

  2. 2

    As adults the spots fade and a pale or yellow band appears across the body.3

  3. 3

    Mothers carry only about 5-15 eggs in their mouths for more than four weeks.3

  4. 4

    It lives deeper than many relatives, down to around 30 metres.1

Recognised by the official bits

IUCN Red List
Endangered (assessed 3 March 2025)1
Taxonomy
Described by Georges Marlier in 19591

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Tropheus Duboisi. It is our own starting plan, not a vet's advice, and you can change every line in the app.

Start a free diary

You might also like

our little thank-you jar

Like what we are building? Buy us a coffee.

The breed atlas is free for everyone, with a source on every fact, and it will never show ads. If it helped you, a small tip keeps the research going. Any amount is lovely, and no is a perfectly fine answer too.

Leave a tip

Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at [email protected] and we will fix it.

  1. FishBase: Tropheus duboisi fishbase.seused for size, distribution, depth, water, IUCN, breeding
  2. Wikipedia: Tropheus duboisi en.wikipedia.orgused for names, populations, etymology
  3. Seriously Fish: Tropheus duboisi seriouslyfish.comused for care, tank, diet, colour change, group keeping

Checked 2026-09-30. Text is written in our own words from these sources.