moldyform Posted November 2, 2007 Share Posted November 2, 2007 I plan to use clay balls as the biological filter in my sump. Does anybody have experience with this media? Also does thisform of media need to be emersed or submersed to work best? Also does anybody know the rate that this media should be used at. I.E. kg/Lt Cheers Link to comment Share on other sites More sharing options...
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