Longhorn Cowfish have known as the horned boxfish is a kind of boxfish that belongs to family Ostraciidae. It is easily recognizable by its long horns that protrude from the front of its head and can grow up to 50 centimetres long. The fish species love to thrive around sand or rubble bottom up to a depth of 50 m. It is omnivorous who loves to eat upon benthic algae, various microorganisms, and foraminiferans.
Longhorn Cowfish excretes a neurotoxin called Ostracitoxin or Pahutoxin from its cells and is capable of killing other tank inhabitants including herself. Despite they come under fish species, however, they dont swim like fishes and this unique method swimming is called “ostraciform swimming” and they look like a hovering spaceship.
https://en.wikipedia.org/wiki/Longhorn_cowfish
The longhorn cowfish, Lactoria cornuta, also called the horned boxfish, is a variety of boxfish from the family Ostraciidae, recognizable by its long horns that protrude from the front of its head, rather like those of a cow or bull.