Tilapia Guinasana

Datasheet

Behaviour

The Tilapia Guinasana fish can coexist with larger African tetras like Congo tetras, although it thrives best in a species tank for optimal breeding conditions. They show indifference towards their own species, but become territorial when breeding.

Feeding and Diet

In their natural habitat, Tilapia Guinasana predominantly feeds on algae and small organisms by grazing the rocky walls of Lake Guinas. A low-protein diet is crucial for their well-being, with spirulina flake, nori, and blanched spinach being suitable options. Occasional feeds of live or frozen brine shrimp or bloodworm are also recommended for a balanced diet.

Reproduction & Dimorphism

These fish are bi-parental substrate spawners, often selecting ledges in Lake Guinas to spawn. In captivity, a flat rock or open substrate area can serve as suitable spawning sites. Sexing these fish is challenging, with experts relying on examining the shape of the genital papillae; pointed in males and rounded in females. The breeding process involves protecting up to 200 eggs, with both parents actively caring for the fry until they are free-swimming.

Habitat and Distribution

Endemic to Lake Guinas in Namibia, the Tilapia Guinasana has also been introduced to Lake Otjikoto and various Namibian reservoirs for conservation purposes. They are commonly found near the rocky walls of clear water lakes, defending small territories for breeding. The collapse of a subterranean cave led to the formation of Lake Guinas, their primary habitat, which is over 100 meters deep. Additionally, records indicate their presence in underground rivers in Namibia.