Hi I had a beardie a while ago and sadly lost him a few months ago when he was 7 years old. I have now took on a male who was dumped on someone's doorstep, I know nothing about him and want to know if he is under weight, he weighs 324 grams and is 17 and half inches nose to tail, is this a healthy weight and is there a way to tell how old he is? He seems healthy enough? Xv