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pH is the measure of acidity of water, on a scale ranging from 0 to 14. A pH
of 0 is the most acidic, while a pH of 14 is the most alkaline. Different
geographies have different tap water conditions with different pH levels, while
fish require a specific pH level to thrive. A pH of 7.0 is ideal when keeping a
community aquarium containing a variety of tropical fish. Goldfish and
livebearers prefer a pH of 7.5. Many Amazonian fish, like angelfish and neon
tetras, prefer a pH of 6.5 to 6.8. Mollies and swordtails thrive at pH 7.2 to
7.5. API pH DOWN Freshwater Aquarium Water pH Reducing Solution lowers aquarium
pH in freshwater aquariums to desired level. Safe for fish and plants. Use when
setting up a new aquarium, adjusting pH, or changing water. pH in an aquarium
can fluctuate due to fish waste, uneaten food and addition of tap water. It is
recommended to test water for pH weekly. With API Aquarium products, it’s easy
to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years,
API has been creating innovative, research-driven solutions that make it easier
to care for your fish and aquarium. API Aquarium Treatment Supplies are
designed to work in conjunction with each other to provide best results to
control algae, promote healthy bacterial growth and help control and cure fish
diseases and conditions such as ich and fin rot. They work to provide a safe,
hospitable environment for fish such as tropical community fish, cichlids,
goldfish and more. With API, you can spend more time admiring your fish, and
less time scrubbing your tank. Make sure to use all products as directed in
order to ensure the best results.