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Less precise control meaning, you dont know how much to start using? And how to adjust?
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75g SPS dominant (Ca= 400ppm, Mg = 1350ppm, Kh= 8.5dkh)
2xJebao wp25/Kessil Ap700/Kalk via Tunze ATO/GFO (6 tbsps every 2 wks); Carbon (6 tbsps per month)
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