How old are these baby corns? Are you sure they are both the same sex if you are expecting to keep them together into adulthood. I have 23 corns and i have some in female pairs never male pairs. Some frown upon having any snakes in pairs but i fing no problem with it as long as they are fed apart and kept seperated for a while afterwards. If they are going to be together and you don`t want to be changing the size of the viv i would say go for a 3ft viv. Only once have i had any of my corns in anything smaller and they were all bought as hatchlings. As Cat001 said plenty of hides and something to climb on and they will feel secure.

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Thanks Deborah.