Thread: planted tank without additional CO2 supplementary, possible?
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Old 06-05-2005, 11:12 PM
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There are PH liquid tester and PH pen. For long term, try to get PH pen. Easier and u can use unlimited time. Price is around RM130-180. PH liquid tester is around RM10-15. KH also the same. I saw Nutrafin selling the KH/GH tester for RM20+. Worth to get....

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