Keeping the water pH within the acceptable range is a precondition for problem-free water maintenance in the pond. The optimum pH is from pH 6.5 to pH 8.0. Use an appropriate pH tester to measure the value.

If the pH is higher than 8.0, use pH MINUS in a ratio of 1 litre per 100 m3 of water to lower the pH by proximately 0.1 provided that the water carbonate hardness is OK.

If the carbonate hardness is too low, add less than indicated above. Apply the product diluted with water (1 part pH MINUS to 2-5 parts of water) from a watering can to the pond surface. When lowering the pH, proceed slowly enough for the pH not to decrease more than by 1.0 within 24 hours. The pH in the pond should be measured on an ongoing basis.

Remember that the pH fluctuates during the day. Always compare pH levels measured at the same time of the day.”

Visit and buy in our e-shop

You can find all our products in our e-shop

Enter the e-shop

Select from over 250 dealers throughout the Czech Republic

Find your nearest PROXIM dealer Our products are offered by over 250 dealers in their shops across the Czech Republic

Find more

Become a certified dealer

As a Certified PROXIM Dealer you can receive our sales and marketing support, discounts and bonuses.

Find more

OPPIK – programme Marketing

Project title: SUPPORT TO PROXIM EXPORT 2019-2020
Project registration number: CZ.01.2.111/0.0/0.0/18_167/0013215

Thanks to the project, PROXIM s.r.o. presents its products and services at international fairs in Cologne, Moscow and Stuttgart.

PROXIM – employee education / Subsidy granted by: Czech Ministry of Labour and Social Affairs

Funding: ESF – Operational programme EMPLOYMENT • Period: November 2019 to April 2022 • Project registration number: CZ.03.1.52/0.0/0.0/19_097/0011787. Brief description: The project will enable company training to be organised for PROXIM s.r.o. employees. The employee educational needs were analysed at PROXIM in order to identify specific training courses suitable for company employees. The objective is to develop employees’ working knowledge, skills and competencies required for top work performance. Key activities: IT basics • Soft and managerial capabilities • Internal trainer