Yellow Tang not eating

[sunoka]

I have had it 1 year. Very skinny and the color is washed out white bloches, not swiming around staying in on part of the tank.
The fish was heathy up until last week and then started to slowly not eat.The last addition to the tank was a cleaner wrasse 2 months ago and the was the one before.

Originally Posted by daniella3d

If your water is good and there is no ammonia and other fish are not affected, it could be a bacterial infection or some parasites. I would isolate the fish in quarantine and treat it with Seachem Paraguard. Paraguard is a broad spectrum medicine that is relatively safe and will treat a lot of things, so this is usefull when you really don't know what you are fighting.

A photograph would help also.

How long do you have that fish?

When you say it aged 10 years, what do you mean? Is it covered in some type of mucous? skinny?

[reef93]

I had 6 yellow tangs and the whole group got this red spot disease. I lost 2 fish before I treat them with Maracyn 2 saltwater treatment, and the rest had all survived after. This medicine makes your water turn to a very cloudy green, you need a quarantine tank. Without treatment your fish won't survive with this disease.