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  1. Equipment
    So I'm sitting here looking at my XY dual sponge filter... ...and I just finished watching and reading up on "Fluidized Sand Bed Aquarium Filters"... ...when it struck me that the little clear tube looked very much like a FSB sans the media...and that "De Nitrate" was supposedly designed to...
  2. Equipment
    I have two 2215 filter and I remember reading somewhere that it's recommended that you replace 50% or so of the bio media (ehfisubstrat/pro) every year or every so often. I was wondering what's the reason behind this. Is it only because the pores of the media get clogged up or is there another...
1-2 of 3 Results