I have a 150 gal tank 60 x 24 x 30" sps and lps. I have a hydor Koralia 2 pump system with controller that is 2 years old. I have been thinking of upgrading. I run neptune apex and am considering their upcoming pumps. My question is about placement. Aesthetically I would put both pumps on the back glass of the tank. Will that detrimentally affect flow vs one on each end? One high and one low? appreciate everyone's thoughts.