Macmaster's Dwarf Cichlid Care Guide - Setup, Diet & Breeding

Macmaster's Dwarf Cichlid is a colourful South American freshwater cichlid admired for its compact size, expressive behaviour, and elaborate courtship displays. Males typically show orange, red, yellow, and blue tones, with a bold dark lateral marking and extended fins that become especially impressive when displaying. Females are smaller and often develop a vivid yellow breeding colouration.

This species is a confident but generally peaceful dwarf cichlid with a fascinating social structure. Males establish territories, while females defend small areas around spawning sites and may care closely for their young. Their interactions involve fin displays, posturing, and subtle changes in colour rather than constant aggression.

In nature, Macmaster's Dwarf Cichlids inhabit warm, slow-flowing waters associated with the Orinoco drainage. These environments often contain submerged roots, fallen leaves, branches, and dense marginal vegetation, creating a complex network of shaded hiding places and small territories.

The species is closely associated with the Apistogramma cacatuoides group and has been popular in the aquarium hobby for many years. Aquarium strains and hybrids exist, so the appearance of commercially available fish can vary considerably from wild-type specimens.

Apistogramma macmasteri is native to the Orinoco River basin in Colombia, South America, particularly the upper Meta River region and nearby tributaries. It comes from slow-moving streams, shallow forest waters, and quiet backwaters with leaf litter and submerged vegetation.

A pair should have an aquarium of at least 60 litres, with a footprint of approximately 60 × 30 cm; a larger tank is preferable for a male with multiple females or a community setup. Use fine sand or another smooth substrate, along with caves, small flowerpots, coconut shells, driftwood, leaf litter, and dense plants to divide the aquarium into territories. Gentle filtration, shaded areas, and open patches for foraging create a natural layout, while secure cover helps these sometimes shy fish feel comfortable.

Males reach a maximum of about 7 cm (2.8 inches), while females are smaller at approximately 5 cm (2 inches).

This species is an omnivorous micro-predator that benefits from a varied diet. Offer high-quality small sinking pellets or granules alongside frozen or live foods such as bloodworm, daphnia, brine shrimp, blackworm, and mosquito larvae. Fry and newly settled juveniles do best with tiny live foods, including baby brine shrimp and microworms. Feed small portions that can be consumed promptly rather than relying on large floating foods.

Macmaster's Dwarf Cichlids can live with peaceful, similarly sized community fish such as small tetras, pencilfish, hatchetfish, rasboras, Otocinclus, and peaceful Corydoras. Avoid large or boisterous fish, fin-nippers, aggressive cichlids, and other territorial dwarf cichlids in smaller aquariums. During breeding, a pair may defend an area strongly, so tankmates should have plenty of room to avoid the spawning territory.

Macmaster's Dwarf Cichlids are cave spawners. Provide a small cave, coconut shell, or overturned pot, where the female can attach her eggs to the roof or wall. The female usually guards the eggs and fry, while the male defends the surrounding territory. Hatching commonly occurs after around 3 days, with free-swimming fry appearing several days later. Feed the fry newly hatched brine shrimp, microworms, or other suitably small live foods.

Males are larger and more brightly coloured, with longer, more pointed dorsal, anal, and caudal fins. Females are smaller, rounder, and often turn a strong golden yellow when guarding eggs or fry.