HELP! One of my angels is visably infected with camelanus (dark,red strings hanging out of anus) I know it's camelanus, because several months ago I had other angels with the same symptoms and after one of them died I did a necropsy with a local "expert" and by looking under a microscope determined it was camelanus. With the last occurance, most of the tank died with treatment. The few fish that were left were moved to a new tank (3 rainbows and a pleco all still fine with no symptoms). The old tank was completely torn down, disinfected, and re-started. I then bought new angels from a different supplier than before. For the past 6 weeks, I have tried treating with Prazi-pro, jungle parasite food, gel-tek. With the food and gel-tek, even with after a few days of withholding food, I had trouble getting them to eat it. There has been no change whatsoever in the visably infected angel. I would greatly appreciate any and all help/suggestions.