Hawkwing Conchs, Strombus raninus, are medium sized, non-aggressive algae eaters that are appropriate for larger reef tanks. The average size we sell is about 2 1/2 inches long, and they can get up to 4 1/2 long. They are too big to climb the walls of your tank, so they spend all of their time on the bottom or possibly on top of low, flat rocks. They are primarily herbivorous, but they will eat pellet foods and other bits of food they find on the bottom. They dont fight with other conchs, but they should not be mixed with large hermit crabs, lobsters, or octopus, all of which would try to eat them. They will not try to eat other invertebrates or corals, so they are pretty safe for just about any reef tank.