Ok I just bought an animal plastics rack about 1 month ago and it arrived today. I built it and installed the belly heat (heat cable?). I have all my new tubs from target (which the rack was built for) and I'm wondering about ventilation... do I have to drill holes for all of the tubs? (*crosses fingers* please say no) I'm also having a hard time finding out where I should place my probe(herpstat ND) because its not felxwatt. There are little grooves in the middle of each shelf on the back and the instructions did not mention what they where for. The belly heat cable is placed in its own set of grooves so I have no clue what to due with the probe.

I have a camera on hand... just say so if you need pics.

Thanks,