[mikm]

Hello ... I believe a good deal depends upon their natural, 'wild' diet. For instance the Miami phase Corns are huge lizard eaters. If their natural (wild) diet consists of reptiles then that phase (Miami for sake of this example) would be more inclined to eat a snake. A reptile is a reptile if you know what I mean. Corns and Garters are very different animals. Personally I would not house Corns of different sizes together. The bigger the size difference the greater the urgency to seperate them.

Best of Luck,