Inca Stone Cichlid Care Guide - Aquarium Setup, Diet & Breeding

The Inca Stone Cichlid is a distinctive South American cichlid with a sturdy, elongated body and an earthy pattern of browns, greys and darker vertical markings. Its subdued coloration helps it blend into the stones, sand and woody debris of its natural surroundings, although breeding adults may show stronger contrast and warmer tones.

This species has an alert, deliberate manner and spends much of its time inspecting the substrate for food. It is not a schooling fish, but it can show interesting social behaviour when kept as a compatible pair or in a carefully planned group of juveniles that are allowed to form relationships.

Like many riverine cichlids, Inca Stone Cichlids combine a relatively robust build with expressive territorial behaviour. They may defend a chosen cave, stone or section of the bottom, particularly when spawning, but they are not generally regarded as relentlessly aggressive outside the breeding period.

In the wild, the species lives among rockwork, sand, submerged branches and other cover in warm South American streams and tributaries. Its cryptic appearance and close association with hard surfaces are reflected in the common name “Inca Stone Cichlid.”

Tahuantinsuyoa macantzatza is native to Peru in South America, where it occurs in tributaries and river systems of the upper Amazon basin. It is associated with flowing freshwater habitats containing rocks, sand, submerged wood and leaf litter.

A pair should be provided with an aquarium of at least 120 litres, with a footprint of around 90 × 40 cm; a larger aquarium is preferable for community groups or multiple territories. Use a soft sand or fine-gravel substrate with rounded rocks, caves, driftwood and other sight breaks arranged to create separate retreats. Hardy plants can be added around the edges, while open areas should remain available for foraging and territorial displays. Efficient filtration, good oxygenation and stable, clean water are important for this river-associated species. Maintain the water at approximately 22–28°C and a pH around 6.0–7.5.

Males reach about 15 cm (6 in) in total length, while females are usually smaller at around 11–12 cm (4.3–4.7 in).

This omnivorous cichlid benefits from a varied diet of quality cichlid pellets and granules supplemented with frozen or live foods such as bloodworm, brine shrimp, daphnia and chopped earthworms. Vegetable matter can be included through spirulina-based foods and occasional blanched vegetables. Feed appropriately sized portions and vary the menu rather than relying on a single food.

Inca Stone Cichlids can be kept with peaceful, appropriately sized South American fish such as sturdy tetras, peaceful barbs, peaceful loricariid catfish and medium-sized Corydoras, provided the aquarium offers enough space and cover. Avoid very small fish that may be viewed as prey, fin-nipping species, highly aggressive cichlids and other bottom-dwelling cichlids likely to compete for territory. A breeding pair may need additional separation because its defensive behaviour can become pronounced around eggs and fry.

Inca Stone Cichlids are substrate spawners that can breed when kept as a compatible pair. The female deposits several hundred eggs on a firm surface such as a flat stone, while both parents usually defend the spawning site and care for the fry. After hatching, the young can be offered newly hatched brine shrimp and other suitably small foods. A bonded pair may become strongly territorial while guarding eggs and free-swimming fry.

Males are generally larger and more robust than females and may develop longer, more pointed dorsal and anal fins. Females are typically shorter-bodied and may show stronger yellow or gold tones when mature or breeding.