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To be happy and healthy, fish require a living environment with the correct pH. If you have pet fish, it’s important to keep the pH at the right level at all times. If the pH is too high or too low, your fish could become ill. Luckily, testing the water’s pH isn’t difficult to do. Experts from trusted aquarium supplier Aquatic Warehouse explain how to test the pH in a fish tank, using either a chemical or digital tester. Determining the Best pH for Your Fish Before you test the water, you need to know the ideal pH. The correct pH for your tank will depend on the type of …