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Old 02-01-2013, 10:49 PM   #42
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Default Re: seachem matrix bio best ?

Originally Posted by driftwoodhunter View Post
Now that I know it's only pumice stone, I'm going to be on the hunt for that at the home improvement/pond/farm stores...
Matrix is a man made expanded media and not pumice.

Originally Posted by Darkblade48 View Post

How is this media achieving localized anaerobic spots within a filter with so much water movement?
It doesn't

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