What would the ideal powerhead setup be for a 90 gallon reef with multiple seahorses be. Tank is 90 gallon 4 feet long. I like the koralia Evo powerheads due to the fact that the slits are to small for a seahorse to get stuck in or grab onto. Right now Ivhave 1 koralia 1150 on one side that is creating a long circular flow but am torn between that and getting a few Nanos instead to create differing flow patterns throughout