How do you safely lower pH without harming fish?

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matt6765

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Hi,
I just got some tetras to add to my tank and I have read that they like slightly acidic water. My pH is 8ppm And I was wondering if their was a way to lower it without using chemicals.

Thanks,
 

ppate1977

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Shawnie

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make sure the driftwood has tannis in it...the tannis is what lowers the ph or organic peat moss in the filter ...but if your tap is high also, it probably would be better to acclimate them over a long period of time and let them get use to the high ph..otherwise at water change time, it will go up again unless you do very small water changes
 
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matt6765

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Yes my tap has a pH of 8 also
 

ppate1977

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In that case shawnies advice is much better. Always better to have stable pH than try and mess with it.
 

sirdarksol

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Generally, with that high of a pH, the only safe way to adjust your pH is to get an RO unit. There's just too much buffer in water like that for tannins from driftwood or even peat moss to lower the pH easily, and by the time it does, you've got a whole new array of water chemistry issues.
 

Goldwing_Don

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i'm with sirdarksol on this one. R/O is the way to go.
 
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matt6765

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My lfs sells R/O water for 50 cents a gallon. Is this a good deal?
 

sirdarksol

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Sorry, I also meant to add that there's usually not much of a reason to do so. I know people who breed tetras and discus in extremely hard, 8.2 water. If a fish can breed, it's doing pretty good. It certainly can make it easier to handle touchy fish, but, as Shawnie said, acclimation will usually work.
 
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matt6765

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Ok thank you
 

baseballlover

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My ph is off the charts on my live ph tab. I just added about 1 gallon of RO water last night.
 
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