The Planted Tank Forum - View Single Post - The best bio filter
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post #39 of (permalink) Old 07-22-2013, 12:55 AM
thelub's Avatar
Join Date: Jan 2013
Location: SE Washington
Posts: 1,982
I've been running them for several months now in an HOB and have no complaints. I don't really know how you can accurately 'rate' a media's filtering ability. FWIW I haven't had any problems with filtering the whole time I've had them.
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