There are a couple of Atl. types, I assume that you're talking about a condy. what info do you need...it will 'walk' around to find a place it likes, it could kill/eat some of your fish, it can burn/kill corals, it can live for yrs, grow quite large and change color. If it will stay in a spot you approve of, it should be hand fed once or twice a week to keep it happy