Ideal Turnover Rate

[RocketEngineer]

There’s a big difference between flow in the display and the turnover with the sump. Be careful you don’t mix the two.

 

[enrik_from_vallejo]

It seems that the current thinking is 3-5 times through the sump controlled by your return pump, and in-tank "turnover" of around 10 or more controlled by your favorite powerheads.

Back many years ago, I ran 10 times through the sump, as that was the thinking 10+ years

 

[enrik_from_vallejo]

I’m a bit surprised with my own numbers, since I‘m already planning to increase my display flow
Turnover: 2x
Display: 195x

Before anyone asks, no soft coral of course...

Maybe they were soft... after so much flow... they became hard

 

[Nextlevelreefer]

I'm running an Innovative Marine 150 ext. & a Synergy RM 44 sump my Apex flow meter says 850-900 GPH I'm utilizing 2x COR 20's and it goes through a 57 watt Aqua UV sterilizer so its slowed-down flow meter is post UV. I also run two MP 40s on the back wall at 80 percent Lagoon.