nicpapa Posted October 28, 2017 Report Share Posted October 28, 2017 Hi there... I keep lot of tanks, my problem is the ro water... I have 2 ro system, there is no any problem with filters, just my tap water is ~680 tds! i get ~ 40 tds ppm in ro water, and the problem is with crs - cbs tanks... I use akadama for substrate, but i think in ro there is some kh ... and some gh in there. I use ss minerals gh +, and i dose to ~128 tds, i tryed in the past , to 150 tds but i i had molting problems.. In the winter when rain a lot it drop tds to ~ 17ppm. Any ideas how can i drop the ro tds? I try with two ro membranes , but there is not any cahnges, it need more psi in water for second membrane. Quote Link to comment Share on other sites More sharing options...
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