Original: $7.15
-65%$7.15
$2.50The Story
Keep your aquarium water balanced with API pH Down, a safe solution that lowers pH levels quickly and effectively without harming fish, plants, or the aquarium’s biological filter.
Key Features:
- Safe pH Adjustment: Gradually lowers high pH levels to create a stable, healthy environment.
- Non-Toxic Formula: Phosphate-free, won’t cloud water or promote algae growth.
- Protects Fish Health: Prevents stress and damage caused by high or fluctuating pH levels.
- Freshwater & Saltwater Use: Suitable for both aquarium types.
- Convenient Size: Compact 1.25 oz bottle, ideal for small tanks and beginner aquarists.
Ingredients:
- Sulfuric acid solution (pH adjuster)
- Deionized water
Usage Instructions:
1.     Test aquarium water pH before use.
2.     Add 1 ml per 10 gallons of water to gradually lower pH.
3.     Wait 24 hours, re-test pH, and repeat if needed.
4.     Always adjust pH slowly to avoid stressing fish and plants.
Why Choose API pH Down?
Trusted by aquarists, API pH Down makes it easy to maintain the correct pH balance, ensuring a safe, healthy environment for fish and aquatic plants.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Keep your aquarium water balanced with API pH Down, a safe solution that lowers pH levels quickly and effectively without harming fish, plants, or the aquarium’s biological filter.
Key Features:
- Safe pH Adjustment: Gradually lowers high pH levels to create a stable, healthy environment.
- Non-Toxic Formula: Phosphate-free, won’t cloud water or promote algae growth.
- Protects Fish Health: Prevents stress and damage caused by high or fluctuating pH levels.
- Freshwater & Saltwater Use: Suitable for both aquarium types.
- Convenient Size: Compact 1.25 oz bottle, ideal for small tanks and beginner aquarists.
Ingredients:
- Sulfuric acid solution (pH adjuster)
- Deionized water
Usage Instructions:
1.     Test aquarium water pH before use.
2.     Add 1 ml per 10 gallons of water to gradually lower pH.
3.     Wait 24 hours, re-test pH, and repeat if needed.
4.     Always adjust pH slowly to avoid stressing fish and plants.
Why Choose API pH Down?
Trusted by aquarists, API pH Down makes it easy to maintain the correct pH balance, ensuring a safe, healthy environment for fish and aquatic plants.





















