03-27-2010, 07:07 PM
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Originally Posted by KSASTER2
ok got it all set up and running... a little louder hum from the filter than I thought but im very picky my GF says its ok so it must be.
Way to much flow... my fish are being blown all over. To remedy I just turned down the outflow using the control valves. Is the ok? or should i have adjust the inflow? or does it matter?
You probably can only adjust the outflow; adjusting the inflow might be dangerous as the filter could drain itself, which is not possible by reducing the outflow.
To further reduce current, which is very important for forest fish and something many never consider, you can position the holes on the spraybar against the end wall. It is possible to have the spraybar just under the surface and positioned such that you get both a current downward and through the tank, plus some slight surface disturbance which is beneficial if not too much (depending if you have plants, or suface fish or floating plants).
As clearly indicated by prior responders, the intake and outflow should be at opposite ends of a rectangular tank for best water flow throughout the tank. The intake should be no closer than 4 inches from the substrate at that point as this will allow the best circulation and not pull substrate into the filter. Both Eheim and Rena recommend this distance.