The ATO container holds top off water to help automate the addition of water to your aquarium that is lost from evaporation. Our ATO features a large opening to accommodate any pump size as well as a lid to prevent evaporation. In addition, each ATO comes with (2) 1.5″ hole to feed cords, wires, hosing, and tubing. Every unit comes standard with a black body to prevent algae/bacteria growth and a clear front for water level gauging assisted by laser engraved marks. The perfect ATO container build with hobbyist in mind!
