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Hydroponics CANNA ADDITIVES PK 13/14 Plant Nutrients 5L Litre

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Waterfall - enough bubbles?

Hi folks,

I will be going hydro for the first time ever soon, yay!

I am considering doing a waterfall with 1 small pvc elbow of 5/8 inches (16mm) in a 40 gal tank (DWC). I have a couple options for the waterfall:

1) Using a water pump of 792 GPH
2) Using a water pump of 396 GPH
3) Using a water pump of 317 GPH

I have a few questions:

1) Considering this is the only thing that will be moving the water, which water pump would you use?
2) Would this be enough to avoid the need of using an...

Waterfall - enough bubbles?


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