I have looked into controllers and without breaking the bank. I've looked at the Reefkeeper Lite, I like being able to have temp, pH, ORP, salinity in one unit. I think I'm able to use some float switches from a DIY ATO. I really like the price and reviews for the Jebao power heads and dosing pump so I wouldn't need controllers for those. I'm using corallife LEDs that are programmable as well. I like that it will control my heater... Does anyone have the RK and how do you like it.