About this item

• Contains one (1) API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
• Lowers freshwater aquarium water pH with a phosphate-free formula
• Does not promote algae growth with pH adjustments and is safe for plants and fish
• Slowly neutralizes alkaline substances that cause high water pH
• Test water weekly and use to correct pH level in freshwater aquariums
• This product contains 9.6% of sulfuric acid