I have 2 4x8 trays maybe 3 inches of water in each say 70 gallons each. I have a 1/4 horse pump 1268 gallons per hour. If i pumped in water to each tray via 2 3/4 pvc and had them pour into the water like a waterfall effect do you think that would supply enouch oxygen for 18 plants in 6 inch...