Please help I have a 6x2x2 fowlr I have had a ongoing problem that I can't sort I've tried various treatments in the display formalin with malachite , weeks of copper months of hypo also tried chroloquine phosphate with no prevale , affected fish are both yellow tangs niger trigger carribean trigger syntoms are largish white spots that appear everywhere breathing is elevated twitching and some flashing my suspect lymph on a large scale but can't be sure , un effected fish are dogface puffer picasso trigger blonde naso tang clown tang