I recently set up a 125 gallon 6 ft fowlr tank, I put two fluval power heads rated for up to 90 gallons each, one on each end of the tank one placed near the surface to agitate the water and one about 3/4 of the way towards the bottom of the tank. Is that too much water flow? Will it stress the fish? I have a fluval f6 canister filter and a fluval 110 hob running at either ends of the tank also