Recently was looking to boost my filtration in my tank and bought a Bashsea bio mass reactor along with a BRS media reactor for carbon. The plan is to run 1 pump through the 2 I have to go 4 feet from the tank and another 4 foot back. They recommended a sicce 1.5 should I go higher? Or that should would I plan to put ball valves between each one to help control the flow some to each as needed but being newer to the hobby not sure how to judge it.