Question about limestone based rocks (ryuoh, seiryu, etc.)

mexicatz

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Feb 10, 2015
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My water is soft with a ph of about 7 out of the tap and a kh of 1 gh of around 2. My tank sits at about a ph of 6.6-6.8. If I add a limestone based rock that would raise gh /kh / ph over time, will I encounter large fluctuations when im doing water changes with water thats softer? Don't want to cause the inhabitants unnecessary stress.
 

rajkm

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Sep 16, 2015
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Is there any reason you are trying to raise it? Limestone will raise KH and GH but not under your control. You can raise KH/GH by other means on you own terms.
 

mexicatz

Junior Poster
Feb 10, 2015
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wasn't really trying to raise it I just like the style of rock like ryuoh, seiryu, and dragon scale compared to the inert options