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Fish Freshwater Care: medium Semi-aggressive

Sulphur Head Peacock

Aulonocara maylandi
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Other names: Sulfur Head Peacock, Maylandi, Aulonocara maylandi, Aulonocara maylandi maylandi
Group: Malawi cichlids · Family: Cichlidae · Origin: East Africa — Lake Malawi (transition zones between rock and sand)

A small peacock cichlid recognized by the males' dark blue body and the sulfur-yellow stripe running from the forehead to the back. It finds small creatures in the sand with its sensory pits; it is kept with calm Malawi species.

Will it suit my tank?

Last updated October 16, 2026

Temperature
24–27°C
pH
7.6–8.6
Hardness
10–20 dGH
Adult size
11 cm
Minimum tank size
300 liters
Lifespan
6–10 years
Social structure
Harem (one male, several females)
Group
at least 4, ideally 8+
Male–female ratio
1 erkek : 3–4 dişi ya da yalnızca erkeklerden grup
Swimming zone
Bottom
Diet
Carnivore
Breeding
Mouthbrooder

Water parameters

Temperature24–27°C
pH7.6–8.6
General hardness (GH)10–20 dGH
Recommended range
Eats small fish Eats shrimp Eats snails Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

Aulonocara maylandi is a peacock cichlid known in the hobby as the "sulphur head". The dark blue body of mature males combines with a yellow or whitish stripe that starts at the snout and runs over the top of the head to the dorsal fin. Females are brown-gray, dark-barred and plain. Like other Aulonocara species, it detects its prey in the sand with the large sensory pits on its head and is calmer than the mbuna.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 300 liters and 120–150 cm in length for a group.
  • Fine sand substrate; rock groups with caves along the sides.
  • Hard and alkaline water (pH 7.8–8.5); aragonite substrate or Malawi salt.
  • Strong filtration and weekly 30–50% water changes.

Diet

October 16, 2026 · Suggest an edit

Carnivorous. A sinking cichlid pellet should be the staple; it is varied with frozen mysis, brine shrimp and cyclops. Bloodworms and foods containing mammalian meat can lead to Malawi bloat.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Males set up a small territory on the sand and display their colors. In the same aquarium as aggressive mbuna, they lose their colors and hide. Aulonocara species hybridize easily; a single species should be kept in a harem aquarium.

Good companions: Aulonocara males of different colors, Copadichromis borleyi, Placidochromis electra, red empress, Synodontis catfish suited to hard water.

Avoid: aggressive mbuna, large predatory haps, community fish, shrimp and snails.

A short profile for this species

The Sulphur Head Peacock page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026