My wife is looking for a BD present for me. I would like to improve my water flow system within my system. Currently I have five power heads circulatiing water in the system. I also have a return from a sump below. I would like to establish a system that is more like the ocean. Currently, I have a mixture of soft, LPS and SPS corals in a 150 gal tank (rectangle). What could be recommended to achieve this goal. I am new to looking at the Tunze products.