Innovative Marine has really been rounding out their Auqa Gadget lineup with some very useful products this year, and one of their most anticpated pieces of equipment has been the HydroFill auto top off system. We’ve been covering their entire lineup rather extensively, and we recently had the opportunity to get some significant one-on-one time with this ATO. While we haven’t finished up all of our routine testing, we wanted to just take a minute to share our initial overview and unboxing of the HydroFill, as well as discuss all of the product’s potential uses. Perfect for tanks of any size, the HydroFill system is composed of two independent components, the HydroFill controller and the HydroFill ATO diaphragm pump. Both products are packaged separately and can be used independent of each other, allowing aquarists a little more freedom with pump selection and use. The controller has a single power outlet that has a 1000W, 8Amp/120V capacity. That’s a ton of power, which may seem a bit excessive, but it allows hobbyists to use virtually whatever pump they want to top off their aquariums.