Ocellaris with infection behind gill

[juliusnano]

Hey
I am new to THE saltwater hobby
And i started mij tank december 2014
ITS à dennerle nano Cube 60 marinus.
À german company not Well known in USA.
Ik from Holland.
I got 2 clownfish last week and they seemed to do fine intil yesterday i saw THE bigger one was Not eating.
I then saw today he has i think Some kind of infection begind his left gill and that irritates him.
He sometimes rubs his gill to stop iching or something.
Is there Anything i can do?
Greets Julius!

 

[juliusnano]

Please someone i really dont want to loze this fish

 

[Mishri]

if it looks like a bacterial infection, you can try antibiotics. Pimafix/melafix is safe to use. If those don't work you can try something stronger/tougher. If it's a parasite prazipro might do the trick. if it's a tougher parasite you might need to try copper or chloroquine phosphate.

 

[juliusnano]

Thanx iT looks like Some sort of white film behind his gills.
IT doesnt show up om camera so photos wont work.
What do you think iT is?
@mishri