Samson is a machine, he weighs just under 1000g, and he was about 200g when I got him. So he's put on an average of about 100g per month since I got him.

He's my failsafe, if my smaller balls don't eat their mice then he gets them, waste not want not. He'd probably get somewhere in the region of 2-3 mice worth each week and if all my other balls eat up then he gets a juicy rat....