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Welcome to hw® Wiegandt, products for aquaristics

Specialized manufacturer of sea salt formulations for science, research and saltwater aquaristics

As one of the first German companies in the field of marine aquariums, Wiegandt has been a leading pioneer in the field of modern aquaristics since 1960. The name Wiegandt quickly became an international synonym for high quality sea salt formulations as well as professional care products and water additives for aquaristics. Wiegandt offers you the benefits from more than 6 decades of experiences in research, product development and high-quality manufacturing.

Established since 1959

Wiegandt can look back on more than 6 decades of successful company history. Decades of proven quality and consistency you can trust in.

Short delivery times

We don't drop anything by parachute, but with 2-3 days delivery time we bring your goods quickly on the way to you.

Made in Germany

All products where produced or assembled exclusively in our own production plants in Krefeld/Germany.

If you have any questions, just asked us.

We do our best to offer you a personal answers, recommendations and advices on all seawater and freshwater related questions.

Office hours: Monday to Thursday from 8:00 a.m. to 4:45 p.m. and Friday from 8:00 a.m. to 1:00 p.m.

If you have any questions, just asked us.

We do our best to offer you a personal answers, recommendations and advices on all seawater and freshwater related questions.

Office hours: Monday to Thursday from 8:00 a.m. to 4:45 p.m. and Friday from 8:00 a.m. to 1:00 p.m.

Information and tips about
marine aquariums and freshwater aquariums

UV radiation

Practical application of UV-C radiation. Functional principle and advantages of a hw® UV water clarifier.

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Reverse osmosis

The hw reverse osmosis: The most modern, environmentally friendly and effective method of water treatment.

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Water treatment for sea water

Why or when do I need a hw reverse osmosis plant?

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Water treatment for fresh water

Why “water treatment”, is the tap water not clean?

Learn more

Product catalogue

Do you need an overview of our products as PDF catalogue?
Products for aquaristics from hw Wiegandt.

Information and tips about the
Marine and freshwater aquaristics

UV radiation

Reverse Osmosis

Water treatment for sea water

Water treatment for fresh water

Product Catalogue

Do you need an overview of our products as PDF catalogue?
Products for aquaristics from hw Wiegandt.

Company holidays

from July 20th, 2020 to August 7th, 2020

During this time no dispatch, pick-up

or acceptance of goods is possible!