I'm guessing it came from Pet Paradise. It really developed a few days after I got the clown and anemone from them. However, just in case I'm missing something... It's a 15g tank, with 2x32w pc lighting, hob filter that I just upgraded today to provide more flow, live rock but I'm not sure how much (plenty), 25lbs of live sand. Livestock is simple, a firefish, a brittle star, clown and nem, mushrooms, zoas, and palys.. not much variety, but I didn't want to have to move too much when the house is done and a new setup is in place. I've been mixing my water (like we have much choice here), either instant ocean or red sea. It's normally lit a good 12 hours a day. Like I said, I think I picked it up from Pet paradise, and the tank was on the low flow side of things so that didn't help. The flow is corrected; old filter was rated 20g, this one is rated 55g. So I think the real problems are solved, now it's just getting rid of the outbreak. BUT... if you have another idea, hit me with it.