He was temporarily in a 1 gallon (he transformed unexpectedly, because all the other tadpoles barely have back legs) that was all water with a reptile food dish filled with sand in the middle as land. the water was maybe 3/4 of an inch deep, and there were fake leaves laying in the water he liked to sit on rather than the land area because he could keep moist. I don't know the temp/ humidity, but this frog, where I live, in the wild, would be dealing with waters and temps that aren't very hot (I live in Wisconsin). He was in the tank by himself. The water is fresh, clean well water, the same I use for all my fish tanks (we don't get city water at my house, we have our own underground well thingy) He hadn't eaten anything because he still had his tail, and wouldn't eat because it was still absorbing and what not. I dont know if there was any poop I didn't check before I cleaned the tank out just now, so I can't get a pic either sorry. The frog is... I guess captive bred because the eggs were hatched in my science class, and the teacher wanted to get rid of some of the extra tadpoles and let me take them home. The frog was only ever handled by me once, yesterday, to take a pic of him on my finger as a size comparison. He was never disturbed otherwise. Low traffic area. I hadn't changed/cleaned it because he was only in there for about 3 days. It was clean though. Do you think he maybe swallowed some of the sand in the land dish?