I had an aptasia population that was out of control in Ayla's 46 bow. I tried juice, pepps, nudis, and 3 cbbs. none of them did the job. G recommended the terminator. 119 seconds after no acclimation whatsoever, he was chowing down. Probably 100 gone within a week. No real issues since. I have noticed my shrooms have kinda wilted and become detached, but I can't say as I've seen the Klein go after anything except every bit of food I throw in....