chem marin makes something called stop aiptasia. It's without a doubt the best stuff on the market. Unlike Joe's juice, which just breaks up the aiptasia, only for it to come back a week later in the same spot, this stuff kills it fast. You must use a needle syringe though. The best part about it is that it's made from hot peppers, and you can use it right next to corals, and not damage anything.