The Planted Tank Forum - View Single Post - seachem matrix bio best ?
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Old 02-01-2013, 07:16 PM   #40
Darkblade48
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Quote:
Originally Posted by exv152 View Post
Matrix is the best de-nitrifying bio media. If you have high NO3 it's probably a good idea, but so are water changes. Whatever gets your planted tank NO3 spec to around 20ppm is good; be it substratpro, lava rock, micromec etc.
I just want to make sure that you meant denitrification in your post.

How is this media achieving localized anaerobic spots within a filter with so much water movement?
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