thanks for the help. unfortunately i have already lost half of my coral in two days. I had no idea it would spread so fast. Iodine dips seem to slow it down, as well as reducing the temp in my QT tank that i had to set up again in a hurry. I thought i didn't need it anymore as I haven't added anything new in months. Well that was an expensive lesson. Over the past two days I have lowered the temp in my display tank a degree a day. Hoping that it will slow down any spread. Also doing small daily Iodine dosing. Heavy skimming, and added carbon, which I hate to do as it really seams to effect my Mag levels.