Eretmodus cyanostictus spawning

Short video of a pair of Eretmodus cyanostictus spawning.

This goby from Lake Tanganyika is an ideal addition to aquariums with other herbivorous cichlids like Tropheus and Petrochromis. Eretmodus cyanostictus is a pair bonding bi-parental mouthbrooder with a distinct, comical personality. Males and females are identical except for a slight size difference. The best way to obtain a pair is to get 6 juveniles and keep them together until a pair is formed. Remove the unpaired extras as they will not be tolerated by the pair. Other than aggression towards “extra” gobies and protecting their young, E. cyanostictus is quite docile and will not pick on other fish.

An interesting aspect of E. cyanostictus is the male’s active participation in caring for the young. The strongly bonded pair will stay together for their entire lives, both caring for and raising their young. About two weeks after spawning, the female will pass the developing eggs to the male who will brood the young until they are released. The fry are allowed to mature even while other broods are being released by the pair. At some point, when the offspring begin to get large, they will be chased away. It is best to remove offspring before they become too large.

For more information on E. cyanostictus, read the articles E. cyanostictus and Goby Cichlids.

Eretmodus cyanostictus

Eretmodus cyanostictus by Dave Hansen

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