Reptile & Amphibian Forums

There were originally three of them, one I sold, one looked fine, and one had a small bite(I assumed) on his head. They were a descent size, a beafy 2-3 inches, and a good colour.
One of them had a mark on his head which resembled a cricket bite, it just looked like a small piece of skin was missing. Over the next few days, I noticed it getting worse. It became two "bites" on his head and a bloody back foot. There were no bugs left in the tank with the frogs, and they certainly weren't bites from the other frogs. The "bites" had a sort of slime on them, like if you were to peel a fresh scab. He died, and I'd only had him for about a 7-10 days.
I was checking the other frog (which I separated when I noticed the wounds getting worse), and his front foot was partially gone. It was kinda "slimy-bloody". I don't know what this is. There isn't anything in their tanks that could do this to them. Is there a parasite that can cause external wounds like this?

Not a parasite but bacteria. It was probbaly a bacterial infection, that spread from the origional "bite". I would suggest completly disinfecting your tank and all its decorations before starting again.