Apistogramma macmasteri (Macmaster's Apisto)

In the wild, Apistogramma macmasteri inhabit slow-moving shallow creeks and tributaries of the upper Rio Meta drainage and the Orinoco River basin. In many places the substrate is composed of leaf litter. The home aquarium should contain soft, acidic water and be biologically mature before these fishes are added. Ideally there will be dark substrate and dense planting, with plenty of hiding places/territories amongst rocks, driftwood, coconut shells etc. Floating plant cover could be used to help diffuse the light. Peat filtration and the addition of dried Indian Almond Leaves (Terminalia catappa) would be beneficial to help create the favoured conditions, and be aware that the tank should have a tight fitting cover, as these fish can jump. Filtration should be efficient, but water movement gentle, and frequent partial water changes should be carried out in order to keep nitrate at a minimum. A. macmasteri are generally peaceful, but can become rather territorial when breeding. Keep either a single pair, or in larger aquaria, one male with several females (which will form a harem). The females will seek out individual territories, hence the importance of many visual barriers within the tank. Good tankmates include Corydoras catfish, hatchetfish, pencilfish, small tetras, and suckermouth catfish. Like many of the Apistogramma species, A. macmasteri will not tolerate an elevated nitrate level. Regular partial water changes are an absolute must for their continued wellbeing.

Distribution: Colombia

Maximum Size: 7cm (2.8”)

Temperature: 23-29°C

Water Parameters: Soft and acidic.

pH: 5.5-6.5

dH: up to 8 degrees.

Compatibility: Specialist community

Lighting: Dim

Sexual Dimorphism: Males grow larger, are more colourful, and develop elongated fin rays.

Feeding: Flake, micropellets, small frozen foods such as bloodworm, white mosquito larvae, vitamin-enriched brineshrimp and daphnia.