I recieved 50 flowerhorns (1-3") almost 3 weeks ago. Some of them were already spoken for and immediatly went to new homes. As of yesterday I have what appears to be a severe case of ich on all of them. Some of them were in different tanks but it all hit the same. Even the ones who went to different house hold came down with it. It seems like a long time after the fact for it to be appearing. Over the last few months it has popped up out of no where, usually after water changes. The water seems to have things floating in it specks and even what looks like bubbles. The water parameters are excellent, each tank has at least a sump or canister in combination with a emporer 400, I do regular water changes, gravel etc. everything possible. I do have knowledge of fish care and run our local pets stores aquatic department. I just cant figure it out. With in the last hour in popped up in my 150 none of the flowerhorns were placed in this tank. It is covering my texas, red devil and jack dempsey. Several months ago I lost over night a red texas and my beloved flowerhorn. I have been unsucessful with coppersafe, marcyl, quick cure and plain old aquarium salt. Temp have been raised slowly to 82-86. Everyone else seems to be having no luck combating the problem either. How do you end up with it in 2-75, 125, 150, 65, 40, and 10 tanks. I just don't understand all of them. Any advice would be helpful and appriciate it. If I lose any more fish I am out of the hobby all together. Thanks