Don't you love aptaisa!!!! I have a bazillion of them in my 40b. I gave up on the battle with them. I've tried everything except a copperbanded butterfly. I have too many LPS that I don't want to be possible meals for it. Peppermints will eat the smaller ones, kalk paste, Joes juice, Lime juice, boiling hot water was all temporary fixes as they will come back 100x worst if you don't siphon every bit of them out after injecting them and it is nearly impossible to do that. Bergia Nudis work great for others but in my experience they didn't do anything for me.