I had thousands of Gray Tree Tadpoles in my pool, which have now left and have taken over my yard. I took in 8 froglets and now I believe 1 to be a spring peeper. When I catured it, it was raining and the froglet was wet, but was about the same size and closely resembled the Gray tree froglets. After the froglet dried and was sitting still in the tank I noticed it wasn't a variation of green or gray, but tan/brown, and had slightly different features than the others. It's body is more narrow and not as chubby as the grays and it's head is slightly longer and more narrow. It also lacks the white under the eyes. There are peepers in this area and I have seen them, as adults, on my front door, but have never seen them as youngsters. Will this be a problem if I keep them in the same enclosure? So far there doesn't seem to be any problems, nor any frog on frog aggressiveness. They have ample space and adequate foliage to hide and relax within the tank. During feeding time, in the container I've dubbed the "dining room", there is plenty of food, everyone is eating and there to are no fights or dominating, I can see, and I watch them the entire time they are in the container. I can't find the questionable froglet for a pic, but I am pretty sure thats what it is.