This ram is the second fish to develop a patch of fungus on her head. The first was a platy, who I didn't immediately quarantine because it looked like a minor wound at first. But then it turned white and fuzzy, so I quarantined him then. I treated him first with Marineland broad spectrum, did nothing. Treated him with proform-c, did nothing. Treated a second round of proform and he died. Meanwhile I treated the main tank with proform to try and clean out any remaining infection, but it did nothing apparently because now a ram has the same type issue. Exact same spot. I threw in some Tetra Ich guard, because that's all I had left, and it's predictably doing nothing. Any ideas what this could be and how to treat it? I was under the impression proform is one of the most aggressive medications out there. What's next?