Alluaud's haplo

Astatoreochromis alluaudi

FreshwaterFish

Care at a glance

Temperature
73–82°F
23–28°C
pH
7.0–8.0
Adult size
7.5 in
19 cm
Minimum tank
55 gal
210 L
Temperament
Mostly peaceful
Breeding
No record
Rarity
Rare
Family
Cichlidae
Origin
Lake Victoria

Overview

This is a large fish that needs a tank of at least 210 liters with room to move and a few rock structures to break up territory. It sits in the middle and lower water and is mostly peaceful for its size, though it can get pushy. In the wild it eats snails and other shelled invertebrates, so feed a quality cichlid pellet plus shelled shrimp and krill to keep its jaws working.

In the wild

Alluaud's haplo lives in the shallow, weedy margins of Lake Victoria and connected waters in East Africa. It favors slow water with submerged plants for cover and feeding. In the tank, give it open swimming room with some rockwork and hardy plants. Hard, alkaline water from the low to high 20s C with a pH from 7 to 8 suits it.

Good to know

This is a robust cichlid in the family Cichlidae, reaching about 19 cm. It is best known for its heavy, molar-like throat teeth, which let it crush snails and other hard-shelled prey. Its diet visibly shapes those jaws, a well-studied case of one body changing with what it eats. It is a maternal mouthbrooder, with the female incubating her eggs and fry in her mouth.

Did you know

This fish is a textbook example of how diet can reshape an animal's body. Individuals raised on hard-shelled food grow noticeably stronger crushing teeth and jaw muscles, while those fed soft food develop weaker ones, even though they share the same genes.

Weekly picks

Tank mates

Alluaud's haplo is a mostly peaceful, social species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Check the full mix in the stocking calculator

Common questions

What size tank does an Alluaud's haplo need?

An Alluaud's haplo needs at least 55 gal (210 L). It spends most of its time in the middle.

What temperature and pH does an Alluaud's haplo need?

An Alluaud's haplo is comfortable at 73–82°F (23–28°C) with a pH of 7.0–8.0.

How big does an Alluaud's haplo get?

An adult Alluaud's haplo reaches about 7.5 in (19 cm).

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