RandyH Posted September 13, 2020 Share Posted September 13, 2020 ok so problem, maybe. I did a water change of 50% on my 125G tank. PH went up to 8.4. Tap PH is 8.4 as well. it was 6.9 before water change. How bad will this affect my shrimp. I have Amano shrimp. Link to comment Share on other sites More sharing options...
Mmiller2001 Posted September 14, 2020 Share Posted September 14, 2020 Kinda depends because your buffering will determine the pH. Basically, you may have a pH change when the water was added and then have it buffered to another pH some time later. Link to comment Share on other sites More sharing options...
Sykes Posted September 14, 2020 Share Posted September 14, 2020 Some more info would be helpful here, not only to answer your question but to make sure you don't get wild swings like this in the future. What was the KH of your tank water before the change (if you know that) and what is it now? Are you measuring your tap water immediately out of the tap, or after it's sat for 24 hours? What's your tap pH and KH after 24 hours? Had you added anything to your tank water/filter to lower the pH? Link to comment Share on other sites More sharing options...
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