Can I just put filter floss inside my canister filter instead of buying these polishing filters at $9 a pop? I have the Marineland Magnum canister filter. Thanks in advance.
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Thank.you!Yes - Absolutely!
The key is to make sure that it is packed so that you get a balance between (A) getting enough floss packed in there to avoid having water bypass the floss where it doesn't press into the corners, and (B) over-packing the floss so that you significantly reduce flow and therefore the effective turnover rate.