What type of cage are you using? Glass or Plastic, I have kept corns quite a bit in the past, and they are incredibly active and will burrow, that being said 2 full inches I still think in a lot, you could easily cut that in half, since they stay slender, their eitire body will be easily covered, especially as a baby, it will be hard enough to find in the cage as it is. But yes I would get the surface of the CAGE to about 85-88 max and you should good to go.