Thanks for the advice i just read that that is why they do that , thank you for your help.Esther19":1y2npbc8 said:That is normal. He is opening his mouth to cool off, which is called gaping. If he stays under the light, but opens his mouth, his basking temp must be just right for him. If he avoids the light, it might be too hot. If he does not gape, it is probably too cold.