JBL Mg Magnesium Test Set Kit for Freshwater Aquarium Plant Fertiliser Control

Pro Shrimp’s comment: Liquid Test Kits are more accurate than the common test strips and enable you to do more tests per package. We stock refills as well! Indicates 0 to 10 as well as > 10 mg/l exactly (recommended value: 5-10 mg/l). Very accurate test with 3 reagents. The comparator system takes the existing

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