Caging Sizes

I use to have a mouse colony before I just got tired of cleaning up after them (got pretty large actually, almost twenty moms). I killed all of those cute things and now I have a bunch of cages. Notably four ten gallon tanks and a twenty.

Obviously the twenty can hold a lot of snakes, but are there any snakes that comfortably fit in ten gallon tanks? I don't think I'll fill them with snakes for a while, but in case I do.

Garter snakes could probably fit in a 10gal. Sand boas are pretty small and could live im them for awhile i bet. A corn snake could stay in them for awhile too i bet.

Garters are the only ones that i could see having a ten gallon as a permanant cage. The caresheet on leos says they can live in a ten gallon. just a thought. :)