Aleviltona Posted January 17, 2022 Share Posted January 17, 2022 Will a high kh cause the ph to raise over time? RO water- ph:7.2 to 7.4,gh:5,kh:7 well water-ph:7.2 to 7.6,gh:6,kh:18 I use the API master test kit so I’m not sure exactly what the ph is. I have been using RO water with Seachem products to get the water to were I want it for my 40 gallon. I set up a 14 gallon using my well water. The water parameters were pretty much the same. The only big difference was the KH. This was the tank before I left for travel for work for 2 weeks and came back to all the plants dead. Was pretty bummed and forgot to take a picture of the after. There was no fish in the tank. Was cycling the tank and having my girlfriend put some fish food in it every day. water parameters before: ph: 7.2 to 7.4 gh: 6 kh: 18 water parameters after: ph: 8.8(so purple it was basically black) gh: 5 kh: 16 The rock and wood have been used before in a 20 long tank that I remove them from to make more room for plants. It’s the same brand of sand and Aqua soil I have used in my other tanks and haven’t had a problem. 1 1 Link to comment Share on other sites More sharing options...
Fish Folk Posted January 17, 2022 Share Posted January 17, 2022 Beautiful tank! True R. O. water should have zero GH or KH. Are you sharing measurements after using seachem additives? Link to comment Share on other sites More sharing options...
Aleviltona Posted January 17, 2022 Author Share Posted January 17, 2022 Yes at the top. I was showing the little difference between the RO and well water. Then at the bottom was water parameters before I left and when I got back. Link to comment Share on other sites More sharing options...
HotTunaCartel Posted January 17, 2022 Share Posted January 17, 2022 Beautiful tank! Been using well water for the last 15 years. You will have some drastic changes depending on the weather etc. I wish I would have recorded the conversation with the NY water science center scientist that I spoke with about the ph drop that we had throughout the summer. It won't be sudden but it will change overtime. We went from 7.8 to 6.6 in the last year, but no issues as at all with the aquariums Link to comment Share on other sites More sharing options...
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