Help to treatment my clown fish

[Balaji]

My true percula clownfish didn't eat for past 9 days and i have did Metrogly Treatment (white poop) but still not eating and now colour getting shade.
Please help by giving your opinion friends

 

[vetteguy53081]

My true percula clownfish didn't eat for past 9 days and i have did Metrogly Treatment (white poop) but still not eating and now colour getting shade.
Please help by giving your opinion friends

Pics under white lights will be helpful as it may likely be brooklynella
If so, you can start with 5 min freshwater dip to give it temporary relief