Machete Posted August 17, 2021 Share Posted August 17, 2021 Hi everyone, The water in my planted tank is testing in the range of 150 ppm GH (I'm using Aquarium Coop test strips). I don't have any rocks or substrate in that tank that would raise general hardness so much, so I am wondering if it's the fertilizers. I'm using ADA Green Brighty N, Neutral K, Iron, and Mineral. Coyld any of these affect GH? (Note: I was using Green Brighty K until a couple of weeks ago when I changed to Neutral K, but the GH high levels persist). Thanks! 1 Link to comment Share on other sites More sharing options...
CalmedByFish Posted August 17, 2021 Share Posted August 17, 2021 Have you tested the GH of the water from the tap? I'm wondering if it's high. Link to comment Share on other sites More sharing options...
Mmiller2001 Posted August 17, 2021 Share Posted August 17, 2021 If any of those contain magnesium or calcium or both, then the answer is yes. Link to comment Share on other sites More sharing options...
Machete Posted August 17, 2021 Author Share Posted August 17, 2021 On 8/17/2021 at 2:55 PM, CalmedByFish said: Have you tested the GH of the water from the tap? I'm wondering if it's high. Yes, my tap water is super soft Link to comment Share on other sites More sharing options...
Machete Posted August 17, 2021 Author Share Posted August 17, 2021 On 8/17/2021 at 2:58 PM, Mmiller2001 said: If any of those contain magnesium or calcium or both, then the answer is yes. Yeah, the Minerals one has Magnesium, that's what I was suspecting, thanks! 1 Link to comment Share on other sites More sharing options...
Mmiller2001 Posted August 18, 2021 Share Posted August 18, 2021 BTW, excellent job on your tank. It looks really good! 1 Link to comment Share on other sites More sharing options...
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