Water parameters
Overview
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
- 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
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
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
Yellow Regal Peacock
Firemouth Cichlid
Rainbow Cichlid
Pearl Cichlid
Red Hump Eartheater
Egyptian Mouthbrooder
Yellow Tail Acei
Butterfly Goodeid
American Flagfish
Anatolian Killifish
Should not be kept together
Hobbyist notes
Things you won't find in books, learned by trial and error. The most helpful ones are on top.
Change history and contributors
- Page created · October 16, 2026





