Cupid Cichlid

Adults reach up to 10 cm in length. Sexual dimorphism is weak: males and females lack obvious external differences. The front of the body is usually orange, while the back, rear section and fins show a blue tint. Turquoise markings appear below the eyes and on the head. A large dark spot is visible on the body near the end of the dorsal fin. Coloration varies somewhat depending on the fish's region of origin. The species' vast natural range suggests there may be several closely related forms hidden under one name. At present, however, no formal subdivision of this cichlid species into new subspecies has been made.

These fish are native to the vast Amazon basin in South America, where they inhabit various biotopes. Many of these waters undergo pronounced seasonal changes, with fluctuations in water level, turbidity and chemical composition.

The Cupid Cichlid is a peaceful and calm fish, except during spawning. At this time it may become less friendly, showing a drive to protect its offspring. It coexists well with many other peaceful fish of comparable size. Intraspecific relationships are marked by a clear hierarchy, with alpha males in a dominant position. A group of at least 5–8 individuals is recommended. With fewer fish, stronger individuals may aggressively attack weaker ones.

For a group of 5–8 fish, a tank volume of 300 litres or more is optimal. Decorate it with materials found in their natural habitat: a sandy substrate, numerous driftwood pieces and some shade-loving aquatic plants (though plants are not essential). Use dimmed lighting. The Cupid Cichlid needs slightly acidic water with low carbonate hardness and is highly sensitive to sudden changes in water chemistry and temperature. Effective filtration and regular maintenance are essential to keep conditions stable. This includes weekly partial water changes, removal of organic waste, equipment maintenance and monitoring of nitrogen cycle products.

This species is omnivorous and readily accepts most common aquarium foods. Food quality directly affects the fish's physical condition and colour intensity, so choose products from reliable manufacturers. The daily diet should include both protein and plant-based components. Feed 3–4 times a day in small portions.

Breeding this species in a home aquarium is possible but requires some experience. Fish reach sexual maturity at 18–24 months of age. In nature, spawning occurs during the rainy season. To stimulate breeding, gradually lower the temperature and soften the water over several days, then maintain these conditions for a while. Once ready, the cichlids form a temporary pair and begin building a nest — a deep pit in the substrate. An important detail: the substrate should contain several large stones, as the fish dig the pit next to them. The female lays several dozen eggs, attaching them with thin threads to the stone surface. Incubation lasts 3–4 days; after another 5 days the fry become free-swimming. Throughout this period the female stays close to the eggs while the male 'patrols' a radius of 60–90 cm, driving off other fish. Both parents protect the fry for about 6 weeks, then lose interest.

Poor water conditions are usually the root cause of disease. When conditions fall outside acceptable ranges, immunity drops and the fish becomes vulnerable to various infections present in the environment. At the first sign of illness, check water parameters and ensure there are no dangerous concentrations of nitrogen cycle products. Often restoring proper conditions brings recovery. In some cases, however, medication may be needed.

When selecting fish, watch for overall activity and skin condition. Healthy individuals should show curiosity, swim in the water column and have no visible damage such as ulcers, white growths or torn fins. Avoid fish with sunken bellies, which may indicate malnutrition or internal parasites, and those that constantly stay at the surface or look lethargic. Check the water clarity in the shop tank, as poor conditions often trigger infections. Observe the group's behaviour: fish should show natural hierarchy, not extreme stress or constant fleeing from neighbours. Ask the seller what the fish are fed, as adaptation to a varied diet is an important indicator of the specimen's health and resilience.