Blue Planet pH Down 200gMeasuring water chemistry (pH Levels) in your aquarium and pond is essential for establishing whether the water is healthy for your fish.Directions for use: We recommend that you allow some time to alter pH as it is better for your fish to become accustomed to the changes slowly. As a general rule, use 1 tablespoon of powder per 100 litres of tank water, first dissolved in a small cup of aquarium water, then add to a flowing area of the aquarium.Use a test kit 1 hour later to check the change in pH value. Repeat the process up to 3 times a day, testing in between.As aquarium water chemistry varies dependant on pollution levels, dissolved organic waste and carbonate hardness, it may take several times to get the right pH level. Please allow a few days to alter pH values over a large scale. An aquarium with no fish or live plants present can be altered quickly.
