Can you provide a picture?
Steve are you wanting get a pic of the Tang? Or the ttm setup?
The tang. Since TTM only eliminates ich, continued symptoms suggest a different parasite. Also, more details of the treatment process (including number of fish, etc) are always useful to analyze what is happening.
OK what I am seeing on the Powder Blue looks like almost nothing. But when you look close from the top down with a flash light it almost looks like hairs. They stick out maybe 1/64 so very very small. They are white