[QUOTEhe eats two mice at a time and still wants more so what should i do [/QUOTE]Ignore him!
Seriously, Bethany hit the nail on the head above. In the wild, they don't know when they're next going to eat, so they'll scoff everything you put in front of them and still keep looking for more. They don't know that in captivity, you're going to guarantee they get another good quality meal in the next week or two - they're just programmed to keep hunting after eating, so that's what they do.
It's very easy to end up with a Mr Blobby snake if you feed on demand - I know, I've been there! And it's the devil's own job to get that flab off them once it's built up - can take years or may never shift at all. Like obese humans, obese snakes can have all sorts of health complications and tend to live much shorter lives.
My adults get one large mouse every two weeks (and that goes down to three weeks in the winter for healthy males and non-breeding females). My eldest is 21 years old, so all I can say is that this regime works like a dream for me and mine.
When you bought a Corn, you signed up for 15+ years of being a Weightwatchers group leader! Ignore those pleading puppy eyes and harden your heart to that frantic hunting around after food. Think of it as a person with an uncontrollable appetite filling themselves to capacity with a full roast dinner, then hunting through cupboards for a packet of biscuits afterwards. They might WANT it, but they sure as heck don't NEED it!