Origin: Amazon and Rio Negro basins, Brazil, Guyana
Size: 10 inches total length
Temperament: usually peaceful
Sociability: schooler, except when spawning
Breeding: egg depositor; exhibits parental care
Sexing: difficult; males have smaller, pointer breeding tube
Diet: omnivorous, but highly herbivorous; accepts flakes
Water Chemistry: pH 5.0–7.0; dH 5–12
Above: adult triangle cichlids
The uaru (prounounced "waroo") or triangle cichlid is a gentle and delicate fish. Though omnivores, they are highly herbivorous and will decimate aquatic plants. Supplement the diet with plenty of fresh greenery. Triangle cichlids will make short work of romaine lettuce and spinach leaves. Algae tablets and other vegetable-based foods should be offered along with other traditional aquarium foods. Flakes are readily accepted.
Juveniles look nothing like their parents. They have a tan to dark body, whose color varies with mood. Against that background is a starfield of small, light spots. These disappear with age, to be replaced by a large, dark triangle.
Triangle cichlids are difficult to breed. Like discus (Symphysodon spp.), the fry feed off the body slime of the parents at first.