That makes sense now. That must be a royal pain to deal with! You're a kind person to take care of him, though. When you said "birds", my mind automatically went to chickens, of course, so that's where the misunderstanding came in.
I like the Virkon-S, especially the ease of making up a bottle...
Ah, I know why I thought you were misting the birds themselves! I read this statement in your first post to say you misted your birds, not your birds' area.
I used to use it for that purpose, but now, I use Virkon-S, which comes in a tablet concentrate to make one pint in a spray bottle. One reason, really, is that it is cheaper to ship a small bottle of tablets than a gallon jug, weight-wise. I still believe that the non-activated has properties...
From the other thread you linked, to clarify for others using it for chickens (I can't believe I didn't catch the fish part, sorry again, wish I knew how to solve your problem or help you with the issue you're having).
My mistake, not sure why I read that, or overlayed it on what you said, sorry for the confusion. I guess this being a chicken forum, I just went there.
When I spoke to Biocide years ago, they seemed a little weirded out that we were using it for chickens at all, said it was not intended for...
I have no idea who Wilson Exhibition Poultry is so I have no clue if the person knows what he/she is talking about. The company that makes Oxine, Bio-Cide says you must use a respirator to spray activated solution, so why would you spray it in your chickens faces if you can't even breathe it...
The dealer is misinformed, seems to me. You should never activate Oxine to mist your birds in the face. That's dangerous. You only use the activated solution as a heavy cleaner for an empty coop, never for them to breathe. I know for a fact it will kill fungus as a non-activated solution because...