Coral beauty stopped eating

[ajiisss]

My Coral beauty which is 5 months old stopped eating . He was eating like a pig before. First he stopped eating frozen foods but was eating pellets . Now it stopped eating pellets too. I don't have any new additions in my tank. Occasionally my purple tang chase my Coral beauty.. All other fishes are eating well. I treated whole tank with prazipro couple of days back. Any ideas? He now seems to be hidiing always

 

[ntableman]

Live foods with selcon work for me. If you get brine. shrimp and give them a few drop of it, let them be for a while, then they are kind of had for fish to not eat..

 

[Screwgunner]

If you can catch him put him in a fresh water for a couple min.

 

[Screwgunner]

Ammonia poison ick fungus and stress diseases all can make a fish stop eating .