Aqua One pH Down is a powdered buffer that helps aquarists control the acidity and alkalinity of their water to create the perfect conditions for their fish to thrive. Different species of fish need different pH conditions and so the testing and adjustment of these levels is vital for the home aquarist.


PH is the measure of alkalinity and acidity within a liquid. PH measured on a scale from 0 – 14 with 7 being neutral, 0-6.9 is acid, 7.1 – 14 is alkaline. Each change in one PH unit reflects a tenfold increase or decrease in the pH value e.g. PH 10 is ten times more alkaline than PH 9 and one hundred times more than PH 8. It is therefore extremely important to make adjustments to PH slowly. Aqua One pH Up allows for the gradual adjustment of alkalinity in the home aquarium. It is vitally important for fish health and vitality that fish keepers test and recreate the water parameters a species of fish is used to in the wild. Incorrect pH may result in many problems including stress, disease and death.

Use pH Down to move ph Down or toward greater Acidity



Aqua One PH Down

1 x 250g pH down buffer in powder form
  • Reduces alkalinity and increases acidity
  • Powder is instantly soluble in aquarium water
  • Suitable for tropical and coldwater


  • Brand : Aqua One
  • Product : PH Down Buffer
  • Size : 500G
  • Usage : Acid Increase
  • Form: Powder
  • Packing : Container
SKU 92086
Barcode # 9325136052695
Brand Aqua One
Shipping Weight 0.5000kg
Shipping Width 0.100m
Shipping Height 0.120m
Shipping Length 0.010m
Unit Of Measure ea
Assembled Length 0.010m
Assembled Height 0.120m
Assembled Width 0.100m

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