I was wondering if you still use dimmer switches on your plastic cages?, i know you use to use them on your wood cages. the reason i ask is that i have a stack of your 4 footers, and the bottom one is up to 4 degrees difference than my top one, they are all plugged into a helix. i was wondering how i can get all the cages pretty much the same temp? i'd be grateful for any advice. thanks, joe


