Green Clown Goby The Green Clown Goby is a reef aquarium favorite and is as fun to watch as it is attractive. They will spawn in captivity. Caution should be observed when placing the Green Clown Goby into a reef environment as they prefer to perch on stony corals. This frequently stresses the coral, so give them some nice sandy substrate to burrow around in as well. Pairs will tear the skin off stony corals to make a nest. Scientific Name: Gobiodon atrangulatus Origin: Indonesia Max Size: 1 1/2 inch Diet: Carnivore Shipping Size: 1 inch