Originally Posted by blacktip

You can certainly keep a baby corn snake in a tank that size. You will want to add more hides and some ground clutter to limit the amount of open space to help the baby feel more comfortable.

There are a couple of downsides to keeping a baby in a larger tank like that. Babies love to hide and burrow into the substrate. Finding a baby with that much space can be difficult whenever you want to take it out to handle it or check on its health. The other difficulty will be in finding their poop in order to clean it out of the tank.

For these reasons I usually keep my babies in a 10 gallon tank for the first year before moving them to a larger enclosure.