08-16-2011, 02:09 PM
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Originally Posted by Byron
With canister filters, the filter intake and outlet should be at opposite ends of the tank lengthwise. Having the spraybar in the centre will result in much less circulation throughout the tank, and mainly confined to the section between the spray bar and intake.
With the spraybar at the left end along the end glass, and the intake at the back right corner (as an example, it can be reversed), you would have a flow from left to right throughout the tank. Replicates a stream nicely, and is very natural. You will find the shoaling fish will tend to always face upstream when at "rest."
Thanks for the advise. I have a few big pieces of decors that will impede the flow to the other end and will cause dead spots. Should I add at least one powerhead? And where?