Hello. I'm doing some research on bloods, I'm thinking about getting one eventually. I've been able to find out housing, humidity, temps, etc, however other than "appropriately sized rodent" I haven't quite been able to figure out if this means large rat, jumbo rat, or something else for an full adult sized blood?

I'm curious, I'm not in the market for one in the near future, but I'd still like to know what I would be getting into.