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#23
07-03-2020, 02:59 AM
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You can just buy the marco rock, slice it up with a band saw, chisel or dremel it and go from there as well... BRS did a video on that. Don't forget to save some costs, but some hydron and put it in a bucket in your sump. It's cheaper than the biofilter blocks yet equally as effective with it's surface area /density. Is the tank going to be SPS or a bit of everything? - there is enough room for it.
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