Bought my Beardie a week after Christmas the pet store just got them in. Have a 20 gallon tank, uv lighting, basking light and heat light. Feed him only crickets and dust them one a week. This morning found him in his water dish. The dish had only enough water to wet his belly. If that much. Then this afternoon he changed position in the dish and the water had dried up. I decided to pick him up to check on him and he didn’t move body seems stiff but I could of sworn I saw his eye lid close and then open a bit. This can’t be. Is there anyway for sure to know if he’s dead? What did I do wrong? I feel like a failure and bad person.