Nan: I almost forgot to answer where I put my rats with cleaning time!
a lot of the times, since they don't like being in the carrier I got for them, I just leave them in the cage, since the cage is really big. it's a double unit so there's a top and bottom connected with a ramp, so I'll usually clean whichever end they're not on first, then move them to the top/bottom when I finish that half. (sometimes I give them treats to keep Meadow from biting me)
but sometimes Seulbi likes trying to 'help' when I put up clean hammocks (she'll put her nose by the loops that hold the hammock) or she just climbs on top of the cage.
Nikki: gotta ask, do you have any tips for bar biting? Reji does it all the time for attention, even if I just had them all out, and she doesn't stop unless I pick her up. I saw on a rat forum that someone said to ignore it, but I tried that and she kept it up. (unless it's just something that she'll grow out of when she's bigger and can no longer get her mouth around the bars as well)