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.