Mr Gumby Posted October 13, 2021 Share Posted October 13, 2021 Hi folks, I've seen a few adds lately for nitrate Absorbing Resins and was wondering if they're genuine or snake oil? Nitrate from the tap is around 20ppm and I'm thinking of filtering it before adding to the tank on water changes Thoughts?? 1 Link to comment Share on other sites More sharing options...
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