Mine don't necessarily get active...but I notice that around monday-tuesday (i feed thursdays) they are poking their heads out of their hides staring at the front of the tub...and after feeding day they remain hidden. Something's definitely up there...

I've never ordered frozen rodents online. The store I worked for ordered mice from a place called Cajun Mice, though I'm not sure they are in business anymore, as they were shut down after Katrina.

There's plenty of quality places out there. Check out the search function...