Well I did not read this until I got back from the vet. I just took the sick frog. DId not see the vet I went to see-but obviously this one saw amphibians too. She said that his belly and legs looked irritated and it could be red leg or another infection. She gave me Gentamicin to soak him in for 1 hour a day for days. I read something online about frogs having a bad reaction to Gentamicin. Anyone ever used it?