I have one that you are welcome to try out if you're ever this way. It works, but it's not a miracle worker. If you have a deep or bigger tank with a lot of rockwork and corals, it can be cumbersome and difficult to reach the crevices where the buggers like to hide their feet in. That said, it's still certainly easier than going in with a syringe of joe's juice, but it's still pretty hard, if not impossible, to clear out a lot a big infestation with the zapper. And like Joe's Juice, if you don't kill each individual majano or aiptasia all the way, they will come right back. The suckers are more resilient than dandelions. The couple other members I've loaned it to have reported pretty good results when going after minor outbreaks.
