Well, I just dropped on in my SPS dominant tank last night, then prayed! So far it hasn't picked on anything. Reason I added it is because i have 4 or 5 aptasia in my tank and joe's juice and all that stuff doesn't do anything for me. Pepermint shrimp are hit or miss, and are usually miss in my tank. Copperband's are so finicky and ick ridden, so we'll see what happens. Anyone else around here have one of these guys? So far all it has done is mimic a leaf, which tells me two things. Its either trying to hide or thats how it hunts, nice set of jaws on it. I'm guessing both.