BAT Posted February 28, 2022 Share Posted February 28, 2022 (edited) Any ideas why the tap water is 7.4 coming out of the tap and 6.4 when I test it in the aquarium? Planted tank w snails and no IAL Amm 0 nitrite 0 nitrate 5-10 Edited February 28, 2022 by BAT Link to comment Share on other sites More sharing options...
Colu Posted February 28, 2022 Share Posted February 28, 2022 If you get a bucket leave the tap water for 24hr you will get an accurate pH from your tap water Link to comment Share on other sites More sharing options...
ScottieB Posted February 28, 2022 Share Posted February 28, 2022 As mentioned above the tap will have some dissolved gases that will affect the pH. Allowing it to sit for a while will give you a more accurate reading. Once in the tank though wood, plants and dissolved organic compounds will lower the pH over time. Link to comment Share on other sites More sharing options...
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