Nt Labs Broad PH Test What is pH? The new Broad Range pH Test is for testing water within the pH range of 6 – 9. This pH test now covers the pH range more likely observed in your aquarium and also offers improved precision with 0.5 unit determination. What is the correct pH level? There is no definitive correct pH as different fish species have their preferred pH range. Generally, the ideal pH value will lie between 7 and 8, but there are some exceptions. When purchasing fish from your local aquatic retailer, always enquire as to the specific water requirements of the fish you are buying. How to use? Ensure the test tube is clean. Take a 5ml sample of water into the test tube. Add 5 drops of the pH reagent; replace the test tube cap and shake thoroughly. Compare the colour of your sample to the colour scale provided.
