KH and pH - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 03-28-2008, 03:26 AM Thread Starter
 
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KH and pH

I'm currently setting up a 110g planted tank and planning to use DIY CO2. I'll be keeping fish in the tank as well so I don't want huge pH swings. In order to not let the pH vary too much due to CO2 fluctuations will setting the KH help to buffer the water? I've read that a KH of 6dKH is good (http://www.qsl.net/w2wdx/aquaria/diyco2.html) .

Is this a good value to aim for, and how should I set it? Can I use sodium bicarbonate in the same way that one would set a CO2 drop checker to 4dKH? Once the water KH is set, will I have to maintain this by adding more sodium bicarbonate with waterchanges? I don't know much about varying water hardness parameters as I haven't done this before so any advice would be greatly appreciated. What does everyone else do with regards to this in their tanks? Thanks!
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post #2 of 4 (permalink) Old 03-28-2008, 03:29 AM
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Welcome Z-man! Don't sweat the pH swings that your CO2 causes! My African tank is going from 8.8 to 7.4 daily, with no ill effects. My planted tank with delicate rams and glass cats swings from 7.4 to 6.8. I'd wager most folks on here have similar situations. The TDS will remain the same, and your fishes will show no signs that they notice it!

Nothing good happens fast in an ecosystem.
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post #3 of 4 (permalink) Old 03-28-2008, 03:41 AM
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Welcome to TPT- glad to have ya!

IMO the ideal pH, gH and kH unless you're keeping more difficult species or breeding fish should be the same as what comes out of your tap. Consistency is best for fish; they can usually acclimate to most parameters as long as they aren't extreme, and keeping the same as your tapwater IMO is the best way to avoid tons of headaches in the long run...





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post #4 of 4 (permalink) Old 03-28-2008, 05:05 AM Thread Starter
 
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Thanks for the replies! It looks like it's a better option just to leave it alone then. Makes it easier for me too, so no complaints!
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