Skip to product information
1 of 1


Quantum Freshwater PH Down

Quantum Freshwater PH Down

Regular price £11.99
Regular price Sale price £11.99
Sale Sold out
Tax included. Shipping calculated at checkout.
Product Image

pH Down is scientifically formulated to safely decrease pH. Without the regulation of pH, the pH of your aquarium is far more susceptible to fluctuation which may lead to decreased efficiency of biochemical processes essential to the livelihood of your aquarium inhabitants. pH Down does not contain a low range pH buffer or sodium therefore it will lower pH without lingering or raising sodium meaning it can also be used in planted aquariums. We recommend conducting research into the preferred pH range of your aquarium’s inhabitants and adjusting your dose to obtain your desired pH.


– Deionised Water

– Buffered Sulfuric Acid


Shake vigorously for 20-30 seconds before each use, this product is not to be used with a dosing pump. For dosing directly into the aquarium – we recommend diluting with your aquarium water first, then slowly adding into high flow. For dosing into water change container – we recommend adding slowly while mixing then continue water change as usual.

This product must only be used in both freshwater and planted aquariums.


1 capful/100L (26 gal) will lower pH by 0.1. Note: the volume required may vary due to the environment of your aquarium. We recommend adding in smaller amounts, then testing pH and making adjustments based on your results. This will help prevent overdosing and improve accuracy.

For easier dosing, download our FREE Quantum Aqua app!

View full details