To weigh a wiggling snake I will put them in a pillowcase and then in the bowl on my scale. Of course you should place the bowl with the pillowcase on the scale and press the TARE button to zero out the scale then add the snake.

You can get a cheap digital kitchen scale on amazon or WalMart.

Feeding mice over rats is new to me. Even the book says to feed either. I have been feeding mine rats and he is a very healthy boy. I was feeding him weekly after getting his RI cleared up that he got with his previous owner. He was underweight. Now he goes every two weeks.

Mine also really seems to enjoy getting time out of his cage. He is very courious and out going. He is pretty relaxed most of the time. He has tagged me before but its not a common occurrence.