Herrwibi Posted April 9, 2023 Report Share Posted April 9, 2023 Hi all , Lately I've noticed my caridina crystal Reds really latheragic and a few dying . I bought new tds meter a while ago and set it up . I'm beginning to think I have it on the wrong setting after reading the instructions . It was set on naci 0.5 but I've now changed it to 442 which is 0.7 and giving me a higher tds. All other parameters are fine but I suspect my tds is around 180 which is high . How much of a difference is 50 ppm , I plan on doing a water change with pour ro on a drip feed over a couple of hours. Naci from what the instructions say is used for brackish and salt water . 442 is for lakes / rivers etc which is more like a fresh water talk. Any help would be great. Quote Link to comment Share on other sites More sharing options...
OblongShrimp Posted April 11, 2023 Report Share Posted April 11, 2023 50 tds shouldn’t be too big of a deal. I am not sure what settings you are talking about when you say Navi or 442, my tds just has one setting that gives yes. Quote Link to comment Share on other sites More sharing options...
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