Midas Cichlid Amphilophus citrinellus (prev. Cichlasosma citrinella/um)

The Midas Cichlid is native to slow-moving rivers and lakes of the San Juan basin of Costa Rica and Nicaragua.

They are stockily built, aggressive fish eating other fish, molluscs and vegetation. Adult males often develop a large head hump (that has been bred to excessive size in captivity). They often retain the hump permanently but it increases when breeding. They also have longer dorsal and anal fins. They reach a length of some 25-35cm.

Gold and yellow colours have also been developed in captivity, but do occur in the wild together with dull grey colouring - especially on females.

Like many cichlids, they bond in monogamous pairs and both parents protect the territory and tend to the eggs and fry.