Does anyone know a good way to get rid of aptasia's. Tey are taking over my tank. I've tried stop aptasia, joe juice, lemon juice,and a copper band to get rid of them and I can usually kill off some of them then they just come right back even stronger. I heard there was type of nudibranch that eats them but I don't know what they are called or where to get one. please help they are starting to sting and kill all of my other corals.