My friend sent me this picture of his betta asking for suggestions and I'm horrified. He also sent me a video where you can see the right eye has popeye and he has some sort of growth on his side and a horrible fungus. My friend said he'd been like this for a month or more. He's moved him to a hospital tank to treat him, I've suggested if he was going to get something to do tetracycline for the popeye and he's started on a general antifungal. But honestly I kind of feel that the fish doesn't have much chance to recovery. Would I be wrong to say if the fish gets worse that euthanasia might be more humane? Thoughts?