Hawkeye said:If you are using tunze powerheads i'd just get a 7096 multicontroller -works fantastic for me.
otherwise i have read a lot about the aquacontrollers and the neptune controllers. Did you look at the sticky by any chance? there's some more detail though it's dated and doesn't have the latest.
Question - why would you want to control the skimmer? Like turn it off during feeding or something?