Patrick_G Posted February 4, 2021 Share Posted February 4, 2021 I added some wonder shell recently and my GH went to 20+ and TDS to almost 400. Is this normal? I added three small shells to a three gallon and three small shells to 11.3 gallon. I did water changes to bring it down a bit but I’m a little worried about the shrimp in the three gallon. Link to comment Share on other sites More sharing options...
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