I have mainly an lps tank. Someone gave me some brown polyps and I threw them in there not knowing how they take over your entire tank. They try to grow everywhere they can connect to and there isn't lps to sting them. Anyone know of a predator I can get to keep them in check/kill them? It would be a real chore pulling out every rock and eliminating them but it may be my only option. Someone said sundial snails but I think it would take an army of them to eliminate them.