Yellow Pyramid Butterflyfish, Hemitaurichthys polylepis.

Considered reef safe the Yellow Pyramid Butterflyfish have fins that are yellow in colour, and the body is mostly white. The white coloration forms a triangle with the yellow fins, lending it its common name. The head area is black helping these fish camouflage themselves in the wild.

The Pyramid Butterfly feeds upon plankton in the wild, and is safe for reef aquariums. The Yellow Pyramid Butterflyfish is quite shy at first, and should be provided multiple hiding places. The ideal aquarium should contain plenty of live rock that will provide hiding places, and a supplemental food source.

They may be kept singly, in pairs or small numbers. The Yellow Pyramid Butterflyfish diet should consist of frozen and freeze-dried foods containing algae are good substitutes and can be supplemented with dried algae and vitamin enriched brine and mysis shrimp.