[madadi]

In my experience trying to "simplify" and use less pumps has resulted in not simplifying at all. What happens is that flow rates change over time. Reactors build up pressure for example and valves get clogged. this results in flow rates to change to different components driving you crazy and instability in your system. Calcium reactors and skimmers work best with consistent flow rates in my opinion. Media reactors have a specific flow range needed or all your media will be ground to a dust and blown in the tank. I tried it, i woudn't do it again in future builds. Just my opinion.