I still thinking whether to run them off my return pump or not. I have a 120 with a Sicce 5.0 (1321gph) . This should be able to handle the tank and 2-3 reactors right ? Only 4-5ft of head pressure on it. (2x) 1" drains and (2x) 3/4" returns. Thinking about plumbing it all together. Is there any downfalls ? Water changes or some feeding modes may have return pump off. Its okay to shut off reactors for awhile I would imagine.
Could do : return pump > manifold with 2-3 lines (all with ball valves, probably just BRS valves) > ball valve for display . But is there a preference to have the lines for reactors coming out the side, or facing straight down ? Or just do it anyway it would fit better ?