High pH/Dissolved Constituents in the Water - The Planted Tank Forum
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post #1 of 4 (permalink) Old 03-01-2009, 05:54 AM Thread Starter
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High pH/Dissolved Constituents in the Water

Hello everyone,

I was just wondering if anyone could help me out with a little problem I seem to be having. So I just set up my ten gallon tank with a sand/flourite mix. I also laid down a bit of Muriate of Potash and Dolomite underneath the sand for a bit of extra fertilization. Now I am not sure if this is the case, but I believe that there may be some extra minerals in the water that is kicking my pH through the roof. It is about 7.6 or so which high I believe. I have not tested water outside of my tank which I probably should do. Nevertheless, I was wondering if anyone knew of this as a problem and what to do to resolve it. Will it work itself out over time? Could it also be the ammonia I have been adding to fishless cyle the aquarium? I would appreciate any and all responses. Thanks.

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post #2 of 4 (permalink) Old 03-02-2009, 01:44 PM
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If you have a high KH, you get a high pH. It is possibly from your tap water (mine is >8) or from the dolomite (which will increase GH and kH). Really not something you need to fix - you will just have a higher pH - and if you inject CO2 you will have a higher "target" pH than others. But your plants and fish will be just fine with a pH of 7.6.


72g bowfront planted, CO2, 4x - T5HO, Eheim 2213 and 2217, 2 angels, pristella tetras, blue tetras, betta, albino bristlenose pleco, albino cories. Sword, vals, hygros, ludwigias, java moss and fern, anubias

2g Mac-quarium. Clown gravel, fluorescent plastic plants, and 2 guppies.
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post #3 of 4 (permalink) Old 03-02-2009, 02:05 PM
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What are your water parameters out of the tap? If you had hard water already, you didn't need the dolomite which is just adding more carbonate to the water keeping it alkaline.

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post #4 of 4 (permalink) Old 03-02-2009, 05:30 PM Thread Starter
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Ill have to check my tap water and get back to you guys. Have to go to class now, but thanks for the help.

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