I'm buying some flexwatt heat tape today...i have a 75 gallon aquarium so my question is how much to get...i was thinking a foot of tge 11 in. will that be enough to keep ambient temp good on other side if tank as well as keep a good basking temp?

How do I set up heat tape to thermometer and thermostat?

Also does anyone know a cheap website to get it from that also haas cheap/free shipping...tganks