I have 2 bell frogs that have been raied from tadpoles. I placed them both in an outdoor tank and they have been there for about 2 weeks from now. I found them today under a rock and the other in water, thinking that they were dead I picked them up, only to discover that they were still alive. They very rarely move, have become darker in colour, look a bit bloated, don't eat a lot and their skin is not as moist as it used to be. Are they hibernating? What kind of conditions should I provide for them?