Yes I think it does make sense. Of course you will want it to filter to a "finer" level than the previous filter. Then maybe add some biomaterials after that.
They are both biofilters.Yes I think it does make sense. Of course you will want it to filter to a "finer" level than the previous filter. Then maybe add some biomaterials after that.
This was my thought. I do not need it now but as my koi grow my system will be able to handle it with the addition bio filter.John I guess you could test the water coming out of the first filter. If everything reads 0, the second filter won't do much for ya.... But it can't hurt.
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