Other: Hi, bit of an odd request. I have a few aquariums, and I use tap water conditioned to remove chlroine. I usually do a water parameter test before refilling my tank, and sometimes the pH can fluctuate from 6.2 - 9.0 within two tests in the same day. Is there any data on the pH of the cities tapwater that I could be sent? Second question, what would cause that big of a variance within 6hrs? If this would be too much to ask, or the wrong place to ask, please kindly ignore this message.

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Justin Meschter