Originally Posted by Dr. Ron Shimek

The general shape and the color of the animal's body indicates that it is a member of the snail group called the Family Fasciolaridae. Fasciolarids are generalized predators and really eat anything that they can catch.

This animal is definitely not reef aquarium safe. It would likely eat worms, snails, clams, etc... It would do fine in a small tank dedicated to it (it could be fed small pieces of fish, etc).