jay
        
文章: 3322
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2 于 2002-07-14 18:23 
i keep on using active carbon in order to get rid of the yellowish/greenish tank water. i use carbon in continuous 2 weeks during which i add no additives, say, zoe marine, kent. essential element and vita chem. . Meanwhile, the UV is on Afterwards, the rest 2 weeks when the carbon is off, i also turn off UV and it is time i apply various, vitamin and trace elements i find AZOO is fair ($20 at Kai Ki卡奇, lowest price is at Hoi Bo- lower ngau tau kok estate, Kowloon Bay MTR exit - $15) |
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