Yes - I have 4 tanks = 4 Klein’s butterflies. I used to stress out over aiptasias but no more! Ha They do eat some of my zoas though but hey - small price to pay!Is that a Klein’s butterfly in there?!?? Sweet! That’s awesome! I haven’t seen one in a reef in like 10 years. There was a guy named Limpet’s Reef who had one that ate aiptasia. The Haddoni’s are cool but that butterfly is even cooler to me!