it will die. other than the urchins, gorilla crabs, pistol and mantis shrimps, all the other bad boy stuff will die in about 3-6 months. all my rock in my 3 year old reef tank is from TBS. Would do it again. these hitchhikers are easy to catch. 5 min to an hour (worst case to get each of them). You need two hands, or two people. Those silly traps sold online are wrong...they catch the good guys, not the bad boys.