How to lower PH - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 01-21-2007, 11:52 PM Thread Starter
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How to lower PH

OK PLEASE DONT FLAME ME WITH USE THE SEARCH.
I tried and PH is tooo short of a term to search for and ive spent some time here looking already. I know its a very numb question but i finally bought a master kit for testing water and in my cherry tank the ph is at 8.4 prob not good huh and why they havent breed. How do i drop the PH is it mearly by more water changes. I only have been adding water to it and not taking any out. Is this the prob. THanks for the help

DK

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post #2 of 10 (permalink) Old 01-22-2007, 12:13 AM
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If your tap water is high pH then water changes will do no good. If your source water is lower than the tank then it will. But then you need to figure out why the tank water is so high.

I can see one problem. When you top off a tank with tap water you will cause the water in the tank to get harder and harder. The water evaporates and leaves behind the minerals. You and more water and the same thing happens.
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post #3 of 10 (permalink) Old 01-22-2007, 12:26 AM
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How big is the tank? Distilled water may be a viable option.....


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post #4 of 10 (permalink) Old 01-22-2007, 01:27 AM
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Get yourself an RO unit. It'll remove most of the buffers that keep your ph high which I feel is better than adding more chemicals to lower it. It will also allow you to adjust your water parameters so you can keep and/or spawn virtually any freshwater species. The last time I looked you could get one off Ebay for around $99 and they only take a few minutes to install.
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post #5 of 10 (permalink) Old 01-22-2007, 02:00 AM Thread Starter
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THe tap waer tests at around 7.4 and the tank size is only 10g.

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post #6 of 10 (permalink) Old 01-22-2007, 02:29 AM
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Test your water after it has been in a container/glass/cup for 12 hours. That will give you (and us) the true pH. 7.4 is not bad at all and definitely not keeping Cherries from doing their thing.


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post #7 of 10 (permalink) Old 01-22-2007, 03:55 AM
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Does that tank have any big rocks in it, or gravel that you haven't tested with acid? Many rocks have a lot of calcium carbonate in them, which slowly dissolves, increasing the hardness, and thus the pH.

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post #8 of 10 (permalink) Old 01-24-2007, 10:51 PM Thread Starter
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Ok yes there were some rocks inside that i removed aslo what about dead snail shells could those alter the ph at all>?

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post #9 of 10 (permalink) Old 01-24-2007, 11:01 PM
 
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co2 will lower your ph
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post #10 of 10 (permalink) Old 01-24-2007, 11:32 PM
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you'd have to have ALOT of snail shells to mess up your PH. But yeah they could. they are basically pure calcium. Crushed coral if you have that in your substrate that will def raise the PH. Or any kind of limestone deco.


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