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Originally Posted by steve fedyk
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How much flow should there be from side to side 5x , 10x ,or more. you don't wont to much flow or too little. ...
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It depends on what environment you are trying to recreate.
Ocean current speeds can range from 2 centimetres/second up to 2.5 meters/second, so it's totally up to you.
I want to keep SPS type corals up near the top of my aquarium, with LPS down on the bottom, so I want a much lower flow in the lower areas with minimum dead spots and much higher 'flow up top with the use of seaswirls that will accommodate the SPS' environment.
I don't know how you can avoid complications from debris and small animals if you use the same pipes for both suction and discharge, so I think I will go with a clockwise flow for 5 hours , followed by a 1 hour period of rest then 5 hours counterclockwise flow.
On the intake screens I'll have much smaller screens than on the discharge screens, unless I run the cycle through the sump return pump where there will be no intake screen.
Mitch