In the past, I've had the best luck using peppermint shrimp and aiptasia eating filefish. I keep both in my systems, all the time, just in case. I've had no luck at all with any of the products out there. They always came back worse than before. The most important thing to consider when wiping out aiptasia is to hit it in the spots where it hides, like your overflows and sumps. One trick is to divert your overflows and fill with a vinegar / water solution, letting it soak over night, then drain it all out. Or, introduce nudi's that eat the stuff, into these areas.