codylau
 
文章: 27
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 于 2004-01-19 23:39    
My tank situation just changed in one night!!! 皮革 doesn't open as it normally does, 提孑 doesn't open as good as normal, 鹿角 turn to white.
I've meaured the tank parameter, and found that NO2 = 0, NO3 ~ 0, PH ~ 8.1, PO4 ~ 0, KH ~ 7, Calcium ~400, Mg ~ 1200. It sounds to me everything is alright, but just don't know what cause the problem. And then, I've changed about 20% of water.
Anyone face similar situation before? What else can I do?
Any suggestion will be welcome. Thanks in advance!
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