Quote Originally Posted by Python Lair View Post
i'm using native earth 18%, they are eating through 1/2 inch grid wire but i still seem to be getting deaths and cannibals
Then your rat stock might have issues. Lots of people feed 4018 and it is a great lab block. I feed the same and have healthy litter after litter with my females. Are you harem breeding? Lots of females in a tub together? Males left in? Give some more details because something has to be up unless your stock is really bad.

Regards,

B