I've been doing some research on setting up a rack system from animal plastics, and I had a few questions.

1) If I get the belly heat built in, will it all hook up with on plug-in, or will it be 7 separate? The reason I ask is because I am thinking about getting the Herpstat PRO, but will that be enough to monitor the rack system, and 3 other separate cages?

2) Will I have to maintain the same temps in each level of the rack, or how would I go about maintaining different temps in each tub so I could keep a variety of species? Or would I just need to get a new rack for that?

Thanks for all the help in advance...