Looking at that spec sheet, your pump draws 1 amp (12 Watts). Each channel on the aquaero can provide up to 1.65 amps, so you should be fine to just plug it right in, although at a 1 amp load you'll want some cooling on the fan amps on the aquaero otherwise you'll either cook them, or the aquaero will protect itself by running the pump at full speed if you're undervolting it.
You then just set up a controller in the software (curve, set point etc.) and assign the pump as an output for that controller.
For the cooling of the aquaero fan amps, Aquacomputer do a waterblock for it (
http://shop.aquacomputer.de/product_info…roducts_id=2671), but in my experience a heatsink and fan is plenty (they also sell a heatsink at
http://shop.aquacomputer.de/product_info…roducts_id=2692, then you can just screw a little fan to it). Honestly, if a waterblock is easy to do for you, it's probably best just to do that and have it really well cooled, but I just made up my own heatsink by cutting up one I had here so I didn't have to buy anything.