Description
Blue Planet pH Down – Safely Lower pH in Freshwater & Marine Aquariums
Control Alkalinity and Stabilise Water Conditions Quickly
Blue Planet pH Down is your go-to solution for managing high pH and excess alkalinity in aquariums. Whether you’re maintaining a tropical freshwater tank or a vibrant marine setup, this fast-acting formula adjusts pH safely and effectively—reducing stress on your aquatic life.
Why Choose Blue Planet pH Down?
- Safely Reduces pH: Brings down elevated pH levels to an ideal range for fish and aquatic plants.
- For Freshwater & Marine Use: Works across aquarium types, from goldfish tanks to reef setups.
- Easy, Measured Dosing: Liquid formula makes it simple to use without guessing.
- Promotes Fish Health: Stable pH means less stress and stronger immunity for your fish.
How to Use
- Shake the bottle well before use.
- Add 5mL of Blue Planet pH Down for every 20 litres of water.
- Test the water pH after dosing and repeat if necessary, up to 10mL per 20L per day.
- Use regularly to keep pH stable in sensitive tanks.

Why It Matters
Fish need stable, suitable water conditions to survive and thrive. High pH can cause ammonia to become more toxic, leading to health issues or fish loss. Blue Planet pH Down gives you reliable control over water chemistry—ideal for new hobbyists and experienced aquarists alike.
Popular Across Australia
This trusted formula is widely used in Sydney, Brisbane, Melbourne, and Perth. It’s a staple in aquarium maintenance for homes, schools, and pet stores across the country.
Expert Insight
“Consistent water quality is critical for fish health. Products like Blue Planet pH Down help maintain a safe, thriving environment.” — Dr Jay Rollings (BSc DVM)
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