White fungus on betta

[ksj]

Hello, I was wondering if anyone could give me a few drops of meth blue so I could treat my male betta.
Or! I have API fungus cure in powdered packets. I don't want to put it in my 90g so I'm wondering if I can put a little wet powder directly on the affected fin?

[tanksalot360]

I might suggest a medication bath. **Please cross reference with other sources so you don't over dose your fish. The idea is that in a small amount of water (1 gallon) you can use a higher dose of the medication (2-5x) but add the affected fish for only a few minutes to soak....before returning it to the main tank.
I'd also recommend Indian almond leaves as they have some antifungal properties and can help condition the entire tank.

[Laura]

Can you move him to a smaller tank while you treat him? I would absolutely not put powder directly on his fin.