水草情迷

我買了 cheap cheap "jeco"<--好似係咁寸 $28
想問下乜色係有 CO2 ...乜色係無 CO2
因為我尋晚水草歐泡時係橙色.....今日出門口又係橙色....

都唔知點....

橙色 means acidic =PH <7 相當多的CO2,
綠色 means netural=PH ~7 CO2 不太多
藍色 means alkline=PH >7 無 CO2

我個缸 用 ADA 泥...咁唔係成日 keep 係橙 law??

Actually, it measure the PH value rather than the CO2 concentration, if there is another factor affect the PH value other that CO2, then this CO2 checker is not accraute.