Heterodon hap

Otopharynx heterodon

Also known as Haplochromis heterodon

FreshwaterFish

Heterodon hap (Otopharynx heterodon)

Care at a glance

Temperature
75–81°F
24–27°C
pH
7.5–8.5
Adult size
5.1 in
13 cm
Minimum tank
79 gal
300 L
Temperament
Mostly peaceful
Breeding
Mouthbrooder · Medium
Rarity
Rare
Family
Cichlidae
Origin
Lake Malawi

Overview

The Heterodon hap is an adaptable, fairly calm Malawi cichlid for the more peaceful side of a rift lake community. It is best kept by someone with a little experience.

Did you know

The species name heterodon means different or varied teeth. Instead of one specialized bite, the Heterodon hap carries a mix of tooth shapes. Those shapes let it take a broad range of small foods from rock and sand.

Caring for the Heterodon hap

Give the Heterodon hap at least 79 gal (300 L), with a sand floor and scattered rocks for cover and territory. Leave patches of open sand between the rocks. It spends most of its time low over the bottom.

Keep the water hard and alkaline, at 75 to 81°F (24 to 27°C) and a pH of 7.5 to 8.5. Steady chemistry and clean water keep this rift lake fish in good shape. Feed a mix of sinking pellets and flake, with frozen foods such as brine shrimp and mysis.

Keep one male with several females. The Heterodon hap mixes well with other peaceful haps and peacocks of similar size, and it does not need a species tank. Do not crowd it in with aggressive mbuna.

Males color up with a blue sheen when they display or come into condition. The female carries the brood, holding the eggs and fry in her mouth until the young can fend for themselves. Breeding it is moderately difficult.

Good to know

Otopharynx heterodon is a three-spotted hap in the family Cichlidae.

In the wild

The Heterodon hap feeds over the sediment-dusted rocks and sandy patches of Lake Malawi. It picks a mixed diet from the bottom.

Weekly picks

Tank mates

The Heterodon hap is a mostly peaceful, social species that keeps to the bottom. 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 a Heterodon hap need?

A Heterodon hap needs at least 79 gal (300 L). It spends most of its time in the bottom.

What temperature and pH does a Heterodon hap need?

A Heterodon hap is comfortable at 75–81°F (24–27°C) with a pH of 7.5–8.5.

What does a Heterodon hap eat?

A Heterodon hap eats a mix of sinking pellets and flake. Add frozen foods such as brine shrimp and mysis.

How big does a Heterodon hap get?

An adult Heterodon hap reaches about 5.1 in (13 cm).

How can you tell a male Heterodon hap from a female?

Males show a blue sheen when they are in condition or displaying.

How does a Heterodon hap breed?

A Heterodon hap is a mouthbrooder. The female holds the eggs and fry in her mouth until the young can fend for themselves. It is moderately hard to breed.

Related species