I had one zoa colony and one frag some down with some kind of fungus. I pulled them and moved them over to my QT. I bought some hydrogen peroxide spray and based on a post on another reefing site, sprayed each and held them for 30 seconds. After the 30 seconds, I dipped them in a bucket of tank water for about two minutes. Swished them around pretty well to make sure I got all the peroxide off. Then, I put them back into the QT. This is only day 1 since the dip and they look rough, but the white spots are down to a minimum since yesterday. I'll keep up with the thread and post an update in a week or so.