TUCCI Posted May 27, 2022 Share Posted May 27, 2022 A few years ago I read various articles about people using Ridx in there aquariums. I recently came across a formula from Fluval that appears to give the same attributes that I recall those who use the RidX were claiming. Can anyone shed some light on this comparison or am I posting this in the wrong section?.....cheers Link to comment Share on other sites More sharing options...
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