Most important rule: only one male per tank
Never keep multiple males of the same species together. It almost always leads to fierce, sometimes fatal territorial fights — even in large tanks. One male with several females (a harem) is the only recommended setup.
Water parameters in detail
The cockatoo dwarf cichlid (Apistogramma cacatuoides) is considered one of the more robust and easier-to-keep species in the genus — compared to other Apistogramma species, it also tolerates somewhat harder, more alkaline water. Other species in the genus often need noticeably softer, more acidic water.
Tank mates
Good fit
- Small, peaceful tetras
- Corydoras catfish
- Rasboras
Not suitable
- Very active species (e.g. swordtails)
- Shrimp (often seen as food)
- Other large cichlids
Notable traits
Dwarf cichlids need plenty of hiding spots and visual barriers — coconut shells, clay pots, and dense edge planting break up the tank visually and help avoid conflict. Females in a harem also need their own retreat spots to escape aggression from other females or the male.
Common mistakes
The most common beginner mistakes: multiple males in the same tank, too little structure and hiding spots, and housing them with shrimp, which easily become prey.