So, I was at a lfs today and they had a new guy there that told me he would sell me any LR from their display tanks for $6 a pound. Score! I thought to myself, so I went looking around and found a nice pretty rock and when he weighed it at 6lbs he said let's just call it 4lbs. So, I bought the rock and brought it home and after putting it in my tank, out pops one head of Aiptasia! I'm going to try to kill it with the boiling water method, if it doesn't work what should I do? I don't want to take the rock out and scrub it clean, but if I have to that's what I will do. What do you think?