This is what I have been trying to come up with, for my new tank. the best I could come up with was two pumps on differant close loops. My thought was its drawning for the other side of the tank would give you the best flow.
How much flow should there be from side to side 5x , 10x ,or more. you don't wont to much flow or too little. Thats where the red dragon pumps would be nice but they're pricey.
I like the idea of the OM with the timer.
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120 G sps reef, looking to build bigger. 
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