B&Q -  Test Reagent 10Ml Bottle General Hardness Gh-A

B&Q - Test Reagent 10Ml Bottle General Hardness Gh-A

NT Labs

The NT Labs Test Reagent GH-A is a 10ml replacement reagent formulated for use with the NT Labs General Hardness (GH) Test Kit. It accurately measures the concentration of dissolved minerals such as calcium and magnesium in aquarium and pond water. Maintaining the correct general hardness is essential for fish health, plant growth, and stable water chemistry.

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