So im working on my rack right now, using 28qt tubs for my small adults and sub adults, and i am using 6qt's for my babies. Im going to be running heat tape, how should i go about keeping a warm and cool side of such a small enclosure? will simply putting the edge of the tub over the heat tape and having the rest off it be enough? i can see in the 28's how a wider area will dispurse more heat and create a cool and warm side but what about with a 6qt?

heres a picture of the TEMPORARY set up. i left all my saws at work so i couldnt finish lol. and the lights are only there until i get the heat tape. 2 tubs are missing. couldnt fit them in yet.

comments welcomed!