FlexWatt Heat tape

[thercman]

So I am debating how to run this stuff. I have 6 twenty gallon tanks and I am wondering if I should run each one individually or connect all 6 and use one rheostat to control them all....

Running them in series will cost more in wiring connectors and of course I loose individual control over each tank. However, I save money with less rheostats and simplify the design.

Running them individually I have control over each tanks heat I add to the cost and complexity by having 6 rheostats and plugs...

What do you guys think? I am leaning toward running them in series.....