so i got a 16 qt tube for my baby bp. i know a lot of ppl would say to get another size smaller but i can't seem to find another size smaller where i live. Anyways, my questions are, i'm gonna get a helix today in the mail with some 4 inch heat tape. Where do i put the heat tape at? at the bottom or at the back? What temperature should i put the helix at and where do i put the probe at? The last question is, with such a small tub, would the heat carry over and the other side so i can have a cool and hot side or should i get another helix to make that happen?