To clarify.
I keep rats and snakes with the mice, all in the same room. No problems with any of them.
However, I keep one cage of fancy rats in the house, only three of them, and they can get stinky in just a couple of days. Enough rats to feed 30 snakes in a living room would stink.
I think.
Ammonia would make you blink.
And put foul taste in what you drink.
And you can forget about pink.
Have to plink your own dink.
if you truly think
that room won't stink stink stink