It is true as Lake Michigan has never been cleaner with the infestation lol. As long as you keep up regular cleaning (tear apaer and scrub everything)with your pumps the equipment should be fine. But there will be little you can do to prevent them from clugging up your plumbing and risking return clug or flood. Also, consider how much calcium they will drain you will have to keep up if you plan to also have stony corals. Im just sticking with my clams, oyster, and feather dusters.