The Planted Tank Forum - View Single Post - SO LFS guy says "column fert = waste" ??
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post #3 of (permalink) Old 11-14-2012, 01:57 AM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
It isn't a mystery, nor a theoretical idea, that plants can gain nutrients from both their leaves and their roots. You can grow aquatic plants with either substrate nutrients or water column nutrients, and better still, if you fertilize either the substrate or the water, both will have nutrients. But, you can get a higher concentration in the water by fertilizing the water and a higher concentration in the substrate by fertilizing the substrate. It does no harm to fertilize both, and it gives the plants two good sources of nutrients.

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