API Freshwater pH Test Kit - Measures pH From 6.0-7.6 Aquarium Filtration including this one

including this one

Since the majority of the bacteria are internal

producing clean and healthy aquarium water

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API Freshwater pH Test Kit - Measures pH From 6.0-7.6 Aquarium Filtration including this oneProper pH control is imperative when caring for fish in a freshwater aquarium. Water that is either too alkaline or too acidic can have harmful effects on fish and plant life, so it's important to maintain consistent levels to keep your fish healthy and your aquarium thriving. This API pH Test Kit is a simple and accurate way to make sure your water levels are normal and don't need adjusting. It tests pH levels from 6. 0 to 7. 6 and includes