I hope he can be saved

[ManyFISH4Me]

I picked up Jungle Fungus Clear today. I decided to treat both of the yellows I have left, just in case. I hope the male isn't too far gone. It says a second dose may be added in 4 days. Has anyone used this before? Most of the products I read, said everyday for 5 days. Does anyone think something else would be better/faster? Because of the way his mouth looks, I don't think he can eat. I haven't seen him eat anything yet. I know he can go a few days without eating, but I don't how long he was like this before I got him.
THANKS to everyone in advance. Everyone is always so helpfull. I don't know what I would do If I couldn't get advise here.