So the past couple days my crabs (red legged, blue legged and emrald) have been hanging out on my daisy polyps frags and I looked closer and the emrald was ripping off polyps and eating them, I added in a piece of nori and he ate a little but today I found a polyp floating around the tank! What do I do!? I put the nori in and they don't eat!:angryfire: is there anyway I can take them out and replace with snails? Cuz they just keep bugging all of my frags and snails!