My Male Endler/guppy Is Not Eating

[black molly3]

my male endler/guppy is not eating what could this be. i am worried as i dont want to loose him. he is just not joining in with any of the other fish no more and always at the centre of the tank. it looks like he has inflamed gills.
any help

 

[debbie888]

I am no expert...why not try posting in the emergency section?