Agreed. I also will always have a wrasse species for flatworm control as well as pod control. Mine always go nuts feeding when I turn the lights on and they see pods. They can bother corals, as well as be food for corals. They are simply another link in the food chain that is so difficult to recreate in a small closed system. But you gotta have something to eat them in my opinion as well. Good point Jerry. I forgot to mention that.