I got my first fish, a pair of clowns and after about a week they died. The first one had white dust and fins looked like they had missing pieces. The black color was faded fast breathing. The first fish died the the second a few days later. I got a third single clown couple weeks later and within a few days now it has the same symptoms and prob won't make it. I suspect it's Brooklynella. I have lots of corals which are all doing great. I don't have a qt tank. It seems what ever is attacking the fish is in my water and I would like to know they best way to treat and get rid of this.