in the last 20 lbs of live rock i added i got some aptasia. they're really tiny, but spreading for sure. on eplanted itself next to a fuzzy mushroom, and for like 4 days, the mushroom retracted from it until it was a pac-man shape, then suddenly, it was back to round and the little aptasia was gone. i don't know how to get rid of the rest of them though, a ibelieve (know) that my big fat puffer will eat anything i put un there to get the aptasia. and there's no way i'm gonna be able to pull the rock, or get to all the little f-ers with a syringe. can i just leave them be? what will they do? they sure as hell won't be able to hurt MY fish. what do you think?