The Planted Tank Forum - View Single Post - seachem matrix bio best ?
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Old 01-31-2013, 04:24 PM   #16
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Originally Posted by ChadRamsey View Post
for UNDER $3, at your local home improvement supplier, you can get a 25# bag of small lava rock. Just rinse and use. And you will have enough there for 10 FX5s
I can only find the 7lb for $4 at homedepot.
Maybe its a reason thing.
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