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PLEASE HELP !!! pH dropped from 8.0 to 7.3 in half day

SaltyDog 文章: 14

1 于 2003-07-01 23:40      I have reef tank with 5 tangs, opened tank about 5 months already. I always change 20% water every 2 weeks, and usually pH is around 8.0 - 8.1. Today, I leave home today noon, ph is 7.9, then I added one tea sppon of pH buffer in cup of water and pout into tank. (I alway do this). when I come back at night, pH is 7.3 !!!! I have chiller and only I only added a small piece of "Sun Flower" yesterday. Why that happened? What should I do now?? I seems all livinf things are still surviving. PLEASE HELP !!!

iczfirz "challenge" 文章: 14186 來自: 我回來了

2 于 2003-07-01 23:41        我都想知.. 何解好似次次落親pH buffer都會個缸pH下降左咁.. 問題或承受過 不相信拋下過 最後決定一雙肩膊別太肩膊 三十一畫：此數大吉，名利雙收，漸進向上，大業成就。（吉）

SaltyDog 文章: 14

3 于 2003-07-02 00:06      Hi, everyone. it is ok now la. It is the problem of the pH meter. I calibrated it, and it shows 8.1 now. But now can the meter changed so much in half a day?

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