I took a couple more pictures that I think confirm HLLE for the scopas. The purple tang is unaffected. I feed them Ocean Nutrition Green Algae Seaweed everyday, always in two places so there isn’t a battle for food. There is also some red macro growing on one piece of rock they like. And I feed frozen mysis shrimp once daily, twice on the weekends. I’m going to start adding vitamins to the mysis this weekend also. Anything else I can do to help? I don’t run carbon, but I did when I first started the tank. Not sure if that can be considered a culprit being that the other tang is not affected?Looking again, there may be a hint of HLLE above the left eye, but tough to say for sure.
Jay