My Piranah is sick...What to do?

[Sinnbox]

A couple days ago I noticed that my piranah had soem whitish fungus on it's side, I put some slime enhancer in the tank like the petshop serons told me to, The white growth seemed to go away, so i called it good and went on vacation for a few days, now that im back there is white all over the bae of his dorsal fin, and the dorsal fin is almost gone!! What can i buy/do to cure this? Thanks in advance!! Joel.

[LosC]

I heard Jungle Fungus works great just use as directed. I tried API Fungus Cure on my Betta but was unsuccessful. Your Pirahna's fungus seems to be spreading and it will keep spreading. Maybe sombody else with more experience with meds can help you out.