Aqua One pH Test Kit

Aqua One pH Test Kit – Freshwater pH Testing for Aquariums and Ponds

pH swings are easy to miss day to day, but water sitting outside a fish’s natural range for too long leads to ongoing stress, weakened immunity and, in severe cases, illness or death.

The Aqua One pH Test Kit measures how acidic or alkaline your water is on the standard 0-14 scale, where 7 is neutral, below 7 is acidic and above 7 is alkaline. Most tap water sits close to neutral, but different species have different needs, tropical fish generally do best slightly acidic around 6.5, while koi and goldfish prefer neutral to slightly alkaline water between 7.0 and 8.0. Because pH can shift over time from rain, water changes or decaying organic matter, regular testing lets you catch changes early and correct them before they affect your fish. If a reading comes back outside your ideal range, adjust it gradually over a few days with Aqua One pH Up Powder or Aqua One pH Down Powder rather than all at once, sudden swings are more stressful on fish than the imbalance itself.

Features & Benefits

• Simple, accurate pH testing for freshwater ponds and aquariums
• Testing range of pH 4.5 to 10
• Up to 60 tests per kit
• Clear colour chart for easy reading
• Helps monitor long-term water quality and biological stability

When to Test

• When setting up a new aquarium or pond
• Before adding new fish or plants
• If fish seem unwell, stressed or are behaving oddly
• After water changes or heavy rain
• As part of your regular weekly or monthly maintenance routine

Recommended For

• New aquarium and pond setups
• Ongoing water quality monitoring
• Diagnosing stressed or unwell fish