pH is the measure of acidic or alkaline conditions of water. A value of 7.0 corresponds to a neutral pH. pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic.
Different fish need different pH levels to be healthy, so it is recommended you use a pH test kit to check the pH level of your aquarium water.
Lowering pH to make freshwater aquariums more acidic for fish and plants, API pH DOWN is a fast acting, colourless treatment that is easy to use. It is ideal for use where testing has shown the pH of your aquarium water to be at an undesirable levels, lowering pH to make your water more acidic.
A phosphate-free and nitrate-free treatment, API pH DOWN will not encourage algae growth, nor cloud or colour your aquarium water.
How to Use:
Determine the pH of aquarium water with an API Test Kit.
To lower pH, add ½ tsp. (2.5ml) for each 95 litres of aquarium water.
For larger aquariums, add 1tsp. (5ml) for each 190 litres of aquarium water.
Take another pH reading before dosing again with pH DOWN.
Some fish may be more sensitive to pH adjustments greater than 0.2 in a 24 hour period, so changes of this magnitude should be done with extreme care.
Tip: Some water is high in mineral ions such as carbonate and bicarbonate, which strongly buffers aquarium water and can resist a pH change or cause pH rebound. In these situations, repeated dosage may be necessary to lower pH.
118ml treats 3,572L of aquarium water.
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