I don't have a q tank, unfortunately. I do, however, have $10 and a way to get to walmart

I also have a filter, heater and light I could use temporarily on that tank. I suppose I'll have to take a trip in a little while to pick those things up, as even though I don't really agree with antibiotics(not even when using on people), but the daily water changes are really taking a toll on me now, as I have to calibrate my tap to the right temp, and carry one or two five gallon buckets filled at the tap into the next room, typically spilling a bit, then gently add it to the tank without disturbing plants...you know the drill. And not only that, but his condition is only plateaued, not getting any better.
I think he must have busted his nose on something...what, I don't know. But he has a slight wound on the same side of his nose as the eye that is affected. I guess I could also get some stress coat.
Anyway, maybe we should discuss this further in the disease forum, since I've decided not to treat the main tank.