The Planted Tank Forum - View Single Post - seachem matrix bio best ?
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Old 01-30-2013, 07:25 PM   #7
CrypticLifeStyle
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Matrix is great, and being its inert you can use it practically forever, with that said $25- for 4 liters is cheap in my opinion. The biological function of a filter, and tank is #1 it's worth investing in
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