Let's not even think about hybridizing Erycines. Hopefully the two would not
be genetically compatible but it's always best to house snakes individually to prevent feeding accidents.
Another consideration is what if one gets sick? It's often hard to tell which snake regurged or had the
abnormal dump, if you have more than one in a tank. And of course if one has a bug ,they'll all likely end
up with it.

