Aqua Illumination Nero 7 Wave Pump (4000 gph)AI NERO 7 Submersible Pump Maximum Glass Thickness: 0. 79 in. (20 mm) Flow Rate: 4,000 gph (15,142 lph) Power Consumption: Variable, 40W max Recommended Tank Size: 80 500+ gallons Included Pump modes Constant Speed A constant stream of flow at the intensity of your choosing. Pulse Consisting of uniform high and low levels. Random Simulates a high energy reef environment. Aim True With a large range of movement in all directions, you can direct the