Just want to say that Uronema has been tuff everytime I run into it. This time around it's proven to be resistant to 60mg of Chloroquine Phosphate. I was shocked that it had no affect. This was pharmaceutical grade straight from the pharmacy. I also did 3x 50 minute dips with Formalin MS 37% without success. The fish were also on a prophylactic antibiotic treatment with Metronidazole, Furan- 2, and Kanaplex without success against Uronema. I am now trying to treat with Arciflavine MS. If this medication is unsuccessful I'll try Copper as a last resort. I've lost two clowns so far and now 1 yellow tang that was very healthy and fat from the beginning. It looked like he got the life sucked right out of him. Dropped a tremendous amount of weight in very short time. Never quit eating though and didn't show much sign of the disease other than some red tinting under the skin and in the fins. Found him stuck to the filter yesterday. It's funny that out of all the research I've done...nobody seems to know how to treat it. It definitely prays on the weak. It has periods where it stops the attack I guess because the fish are not weak and able to tolerate. This makes it hard to treat or understand because it's there and then it's gone. Well not really gone, but not attacking the fish.