# Liquid PH Down Treatment 250ml

Aqua One pH Up and pH Down assist in the adjustments to pH in your aquarium. 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.

**Available in different sizes:**

-   92162 - Liquid PH Down 150ml Treatment
-   92163 - Liquid PH Down 250ml Treatment

**Suitable For:** Coldwater, Tropical & Marine

## Details

- **Price:** 9.99 AUD
- **Vendor:** Aqua One
- **Tags:** All Products, Fish, Fish Chemicals, recently-purchased

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9.99 AUD | In stock |

## Images

- Liquid PH Down Treatment 250ml

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> Source: [RSPCA World for Pets](https://www.rspcaworldforpets.com.au/products/liquid-ph-down-treatment-250ml)
> Updated: 2026-07-05