Was out of town this weekend, and got back last night and noticed three quarters of my zoas closed, same ting this morning. I always dip all my corals with coral rx, but just noticed about 5 zoa eating nudibranchs, jst got some flatworm exit and am starting to dip, trying to find a seperate system so i can starve them out in the main tank..... Man this sucks, already 6 frag plugs obliterated from nextwave......