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fluval fx6

  1. Equipment Talk Section
    Hi guys. 75 gallon tank - Pretty much fully stocked. Currently have 3 large sponge filters running in it. Last test: Ammonia - 0, Nitrites - 0, Nitrates 0-5ppm. Here is my question, I have the opportunity to get a new FX6 at a pretty good price but am not sure what a cannister filter will do...