tang Vs red blotches

[teog]

Hey I have a computerless friend that I have a question for.
She has a yellow tang which developed red blotches within the last two days. She also has two perc clowns which seem fine. I dont know what the water is like, she will have it tested today.
I know that she feeds flake food and dried algea for the tang, but the tang wont eat the algea. Any ideas?

 

[beth]

Well, where are the red blotches? Usually this is a prelude to disease, and quite possibly a bacterial infection.
There are flaked seawood and algae food that can be bought, but your friend should hang seaweed selects or nori on a lettuce clip for the tank. It may take a few days for the tang to figure out that he needs to graze from the clip, but he'll get the hang of it.