
Colombo pH- Minus Reducer & Stabiliser | Mineral Pond Water Treatment | Koi Safe
Colombo pH- is a liquid treatment designed to safely lower and stabilise pH levels in pond water. Maintaining the correct pH is important for fish health, with an ideal range between 7 and 8. This formula works quickly while supporting the pond’s biological balance, making it suitable for routine water management.
Key Features:
- Effectively reduces high pH levels in pond water
- Fast-acting formula with stable results
- Helps maintain a healthy environment for fish and plants
- Safe for koi, ornamental fish and aquatic life when used correctly
- Simple daily dosing for controlled adjustments
- 2.5L bottle treats up to 25,000 litres
Colombo pH- allows for gradual pH correction, helping to avoid sudden changes that can stress fish. Regular testing and careful dosing help maintain consistent water conditions and support overall pond stability.
Dosage:
- 50 ml per 1,000 litres of pond water daily
- Do not reduce pH by more than 1 unit per day
- Do not exceed 50 ml per 1,000 litres
- Repeat dose the following day if required
- Ensure KH is at least 6°DH before use
Colombo pH- is a liquid treatment designed to safely lower and stabilise pH levels in pond water. Maintaining the correct pH is important for fish health, with an ideal range between 7 and 8. This formula works quickly while supporting the pond’s biological balance, making it suitable for routine water management.
Key Features:
- Effectively reduces high pH levels in pond water
- Fast-acting formula with stable results
- Helps maintain a healthy environment for fish and plants
- Safe for koi, ornamental fish and aquatic life when used correctly
- Simple daily dosing for controlled adjustments
- 2.5L bottle treats up to 25,000 litres
Colombo pH- allows for gradual pH correction, helping to avoid sudden changes that can stress fish. Regular testing and careful dosing help maintain consistent water conditions and support overall pond stability.
Dosage:
- 50 ml per 1,000 litres of pond water daily
- Do not reduce pH by more than 1 unit per day
- Do not exceed 50 ml per 1,000 litres
- Repeat dose the following day if required
- Ensure KH is at least 6°DH before use
Original: $22.78
-70%$22.78
$6.83Description
Colombo pH- is a liquid treatment designed to safely lower and stabilise pH levels in pond water. Maintaining the correct pH is important for fish health, with an ideal range between 7 and 8. This formula works quickly while supporting the pond’s biological balance, making it suitable for routine water management.
Key Features:
- Effectively reduces high pH levels in pond water
- Fast-acting formula with stable results
- Helps maintain a healthy environment for fish and plants
- Safe for koi, ornamental fish and aquatic life when used correctly
- Simple daily dosing for controlled adjustments
- 2.5L bottle treats up to 25,000 litres
Colombo pH- allows for gradual pH correction, helping to avoid sudden changes that can stress fish. Regular testing and careful dosing help maintain consistent water conditions and support overall pond stability.
Dosage:
- 50 ml per 1,000 litres of pond water daily
- Do not reduce pH by more than 1 unit per day
- Do not exceed 50 ml per 1,000 litres
- Repeat dose the following day if required
- Ensure KH is at least 6°DH before use

















