Hey! I just got the same tank and 2 cor 20 pumps.. How did you get to keep them both at 85% each? Mine at 42% each are emptying the return chamber and I don't have enough flow to keep the chamber with water in :OI like them. I didn't waist an AC outlet on the EB832, they are connected with the AquaBus connector.
They are very adjustable with the Apex. I have them set at 16% on feed mode and 85% when on. That seems to be good. I do not see a need for flow meters. Happy so far.
Any input is appreciated! Thanks!