I am currently building my very first tank (Reefer 250).
I am trying to understand why automated power strips are needed? I see people have like "feed mode" or "water change mode" and certains things turn off, but what is actually necessary to have the need for automation in other applications? Sorry if its a silly question!
The automated systems, like an Apex or GHL, have one big advantage to the health of a reef tank (in my opinion) and that is heater control. A heater with a built in thermastat can maintain a very constant temperature but they can also stick "on" and overheat a tank. A heater controller (ink bird type) can prevent oveheating but they don't maintain a very constant temperature. A controller, like the Apex or GHL, can provide protection and constant temperature.
As for the rest of it, it's all convenience. I like that I can hit one button when it is tank maintenance time. It turns off my heaters, return pump, skimmer, reactor pump, and power heads. I do my water change, hit one button, and everything starts back up except my skimmer. My skimmer starts 2 minutes later to let level in my sump stabilize.
My controller also turns on and off my refugium light, monitors and displays temp, pH, ORP, salinity, and alkalinity.
Controllers are all about making life easier for the reef keeper. It's nice to not have to worry about remembering to plug everything back in (or to unplug it) when doing maintenance.