what was left of one of my frogs (not much at all). I feed my fish and

Well, no matter how well the fish and the frog seem to be getting along
sooner or later something will and always does happen. That is why you
shouldn't mix frogs with fish. The fish will nip at toes, "pollute" the
tank, and even eat the frogs. The frogs will try to eat the fish and the
frogs themselves can be kind of messy.

--
Jeremy Carroll
Center for Reptile and Amphibian Propagation and Conservation
http://www.onet.net/~eagle/Reptile/index.htm