Caroleinwv Posted January 27, 2021 Share Posted January 27, 2021 Good evening Nerms. I just found a weird situation. I did not test every tank but in the few I checked I got high - over 1000 ppm TDS.. no, not my tap water. It checked average 25. So, on two tanks I checked all parameters which were within normal, low ranges except GH which was off the chart. Tap water normal. What is causing this? Fish seem fine. Plants seem fine. Low pH. 6.0 - 6.5. Link to comment Share on other sites More sharing options...
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