So where should the power heads be positioned??? I used to have it near the surface of the water but maybe I should have them down closer to the middle of the tank towards the live rock where the cyano is growing. I already have a sand sifting goby as well as a sand sifting star fish to help with the sand. Maybe the increased flow will help with the sand as well. It almost sounds like I should have a powerhead on each end of my tank.
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