feeding???

[starmom]

i got a new ball python 16-18 inches.. male. i think hes from this year. im not sure what size mouse is too big or too small? could someone tell me a good size? or direct me to a lab mouse size chart id there is such a thing...

thanks!!

Do you have a scale? I feed 10-15% of the snake's weight (up to about a 90g prey size.)