*Warning Thread Hijack *

i have a 30gallon glass tank for my BP. This is more of a what kind of UTH should i go with? everytime i hear people talk about flexwatt tape, it's in reference to racks...is it good enough for a glass though? and how much of my bottom should be covered in UTH.

I think i'm just going to splurge and buy a helix proportional...but i need to know what it's going to. Thank you