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post #3 of (permalink) Old 02-21-2013, 09:31 AM
Planted Member
Join Date: Jul 2012
Location: Los Angeles, CA
Posts: 214
I do think water movement is important even in a plant only tank for at least two reasons:
- Water circulation allows for circulation of nutrients in the water column. Some plants absorb more nutrients from the water column than from the soil.
- Poor water circulation is often a contributor to algae and BGA. It's not the only contributor and isn't always the key contributor, but it is one nonetheless.
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