Ashley Shadows: There are a lot of diffrences between keeping a cornsnake in Germany and keeping a cornsnake in America. We have other priorities.
The most German snake owner keep small groups together in one viv. I mean about 2-3 Cornsnakes. But we mind that they have all the same sex, because we don´t want the females to get weak from laying to much eggs and the mating. The practical expierience showed that females live together without problems. Only male groups could be tricky because of fights between them. My males haven´t brawled since they live together in one viv.
Normally our tanks are much bigger than the common 20 gallons in america (For example my tank for two female has about 230 gallons ) so they have more space to avoid each other.