Marble Hatchetfish (Lot of 4) The Marble Hatchet only grows to an inch and it is not quite as hardy as the silver hatchet, but this is a great aquarium fish. These fish stay near the surface of the aquarium and are truly shaped like little hatchets. The body has a black marbled pattern and Hatchetfish can jump so we recommend a cover on the fish tank. Hatchet fish are peaceful and may be kept with nano tank species. Scientific Name: Carnegiella strigata Origin: South America Max Size: 1 inch Food: flake Shipping Size: Approx. 0.75 inch