@wallace
How is it so far?Well I ordered the Reef Breeders Prism ATO. Im hoping I can put the sensor inside the return box for the skimmer. It's really just a small little box that hooks onto the side of the tank to catch the water coming out of the skimmer hose into the tank. I don't use it for the skimmer anymore so I'm hoping I can find a spot where my flow isn't constantly moving the water.