Hi, thanks for the tips again. I just did a 90% water change in my curing tank and cleaned out the gunk and detritus as well as the tank sides. Will test the water tomorrow to check for the ammonia,nitrite and nitrates. Meanwhile my corals and frags had arrived which I have kept in my RSM. I am having a microbubble issue in my RSM 250. The bubbles are created in the skimmer and gets sucked into my tank by the number 1 pump. Any suggestions on overcoming this new problem? My corals had come stuck to some live rock and is now releasing some slimy stuff . I have netted out a lot and also did a partial water change to avoid toxicity. please give me some tips to care for the corals till my rock is fully cured. thanks again