Redford's First reef!

[ReeferRob]

That won't be too much flow though the sump? I was looking at the QO3300 which would put me at ~494GPH through the sump.

My thought is that the more time in the sump, the more time for the Chaeto to work.

I have two Koralia 3's to augment flow inside the tank. I might pick up another Koralia 2 or even another Koralia 3 to further increase the flow.

Good point, if your going to harvest Chaetomorpha for nutrient reduction you definitely want a longer dwell time.

[schminksbro]

Actually I think you want it to travel through more times rather than stay longer. In my experience Chaeto grows better with a brisk tumble.

Good point, if your going to harvest Chaetomorpha for nutrient reduction you definitely want a longer dwell time.

[Bella127]

Chaeto you definitely want it to tumble for maximum effectiveness, but other macro's you want it to go slowly thru the sump for the nutrient capture.