Youll need a gate valve for the herbie , as well unions should be under each bulkhead as well. Another must is a union ball valve over the pump or at least a ball valve and union so you can remove the pump if need be in the future.
If you plan to run reactors you may want to build a manifold off your return with a few extra outputs so you can tie in to run reactors , water change etc. without the need for star pumps
