I have a 75 gallon with an xp3 and pressurized co2. I have the spray bar on the xp3 and I dont think there is enough water movement. The top half of my tank is clear and the bottom half has algae growing on it. My drop checker says the co2 amounts are correct. What can I do to add movement? I was thinking about putting the power jet nozzle on it or should I get a power head?