My Tang lost her color and looks like she has a redish rash on her nose. She is acting OK but looks awful. I cycle my 75 gal
tank one a month and feed her green seaweed. I have a clown and snowflake eel in with her and they are fine. No coral or liverock.
I have never tested my tank for proper levels (shame on me). Could someone tell me what is wrong with her?
I would also like to purchase fish that will be big and colorful and of course compatable - any suggestions on this also?
What type of test kit should I purchase?
Thank you for responding.