Ereefic said:Roidan, can you give details on your whole set-up?
Where do you have the return pump that goes to the clam tank located in the sump? Before, after skimmer? Flow rate in the clam tank? Pics would help too if you have any.
Thanks.
I have the return pump that goes to the clam tank at the last stage of the sump, definitely after the skimmer and refugium, water gets skimmed by the skimmer and then flows into the refugium, and then finally the return pumps to the main tank as well as the clam tank...which would benefit from the pods activity in the refugium

I am using a Sicce Extrema pump, which I believe isn't readily available in the states, it's an Italian made pump with adjustable output of 2500l/hr maximum.
But since the tubing has to travel the distance above the refugium and above the skimmer and up the vertical distance into the clam tank, flow rate is definitely much less and gentle enough for the clams not to be irritated by the flow and yet enjoying the shimmering rays of the MH above them
