velvet treatment advice needed......

[Aquattro]

No, it's possible for a fish to be a carrier and not show symptoms. Apparently if they've had it, they're more resistant to showing signs. I had the same problem, I had a goby left that I just figured I'd let die, but after a month, he was still swimming around. The fish hook trick finally got him out, into the treatment tank, and he jumped the next day. Stoopid fish..