Sounds like good advice. So now the question is what controller do you recommend.
Oh boy! A can of worms on this one. Everyone has their favorite......If you tell me who makes the best spaghetti sauce, I'll tell you who makes the best controller.
You can get a controller just for your heaters/chillers, or you can get a controller that controls everything. I'm an "everything" person, and I went with a ReefKeeper......and it's the older model.....ReefKeeper 2.