I have been reading and the temp controller of choice seem to be the Ranco controllers, my question is if I wanted several heaters in the same controller. I believe I am understanding people just cut the single plug and wire in a bigger power cord with more outlets, as long as the combined watts don't exceed what the controller is set for? I have been looking for several plug controllers but not wanting to spend a fortune as I need several temp controllers for multiple tanks. I am just trying ton understand if this is the correct way to go about it. Thanks in advance for any and all info!