API pH Down, 1.25 OZ

Precise Control for Your Fish’s Ideal Environment

Many freshwater fish thrive in slightly acidic water, but tap water is often naturally alkaline (high pH). API pH Down is a concentrated, fast-acting solution designed to lower your aquarium’s pH to the perfect level. Whether you are keeping delicate Amazonian species or trying to encourage breeding, this formula provides the control you need to mimic a fish's natural habitat.

Why pH Down is the Professional’s Choice:

• Phosphate-Free Formula: Unlike many other pH adjusters, API pH Down contains no phosphates. This is crucial because phosphates are a primary food source for algae our formula lowers pH without causing a "green water" breakout.

• Fish & Plant Safe: Specially engineered to be gentle on your livestock. When used as directed, it is safe for all freshwater fish and live plants.

• Instant Results: The liquid formula mixes immediately with aquarium water, allowing you to see the adjustment in real-time.

• Compact Dropper Bottle: The 1.25 oz size is perfect for nano-tanks and precision dosing. One bottle treats hundreds of gallons, as only a small amount is needed for significant adjustment.

When to Use pH Down:

• Testing Reveals High pH: Use when your API Master Test Kit indicates a pH level above the preferred range for your specific fish.

• Acclimating New Fish: Help new arrivals adjust by matching the shipping water's pH to your tank's pH more closely.

• Breeding: Many species require lower pH levels to trigger spawning behavior.

Safe Dosing Instructions:

1. Test First: Always test your water before adding pH Down.

2. Dose: Add 0.5 ml (approx. 10 drops) for every 10 gallons (38 L) of aquarium water.

3. Wait & Re-test: Allow the water to circulate for at least 4 hours before testing again.

4. Gradual Changes: Pro-Tip: Never change your pH more than 0.2 units in a 24-hour period. Rapid shifts can shock and kill fish.