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High Performance
When not in use
This will strengthen their immune system
We recommend feeding in small portions several times a day
Hanna Instruments Copper Low Range Checker aquarium soil High PerformanceImprove the accuracy of your water testing results with our simple handheld colorimeter. Get more precise technology than your typical chemical test kit with our low range copper colorimeter. Providing you with a direct digital copper result, our handheld colorimeter eliminates the hassle of matching to a color chart. Stock up on reagents! This checker includes a starter kit for 6 tests. Take our portable colorimeter wherever you go. Getting your