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Welcome to hw® Wiegandt
Products for aquaristics

Special production of sea salt mixtures for science, research and marine aquaristics.

As one of the first German companies in the field of marine aquaristics, the Wiegandt company has been a pioneer in the field of modern aquaristics since 1959. The name hw®-Wiegandt quickly became an international synonym for high-quality sea salt mixtures as well as professional care products and water additives for aquaristics. You too can benefit from more than 6 decades of experience in research, development and production.

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.

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cta fisch kontakt

If you have any questions, just asked us.

Personal advice on our
sea and freshwater products.

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

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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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Water­treatment at sea­water

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

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Water­treatment for fresh­water

Why "water treatment", is the tap water not clean?

Product catalog

You need an overview of our products as a PDF catalog?
Products for aquaristics from hw Wiegandt.

Gratis für Sie

Ab einen Warenwert von 100€ erhalten Sie ein Fläschchen unserer 
hw-Flüssigprodukte (250ml)
gratis zu Ihrer Bestellung dazu.

Die Auswahl ist riesig! Da ist für jeden was dabei.

Company holidays

from July 12th, 2021 to August 2nd, 2021

During this time no dispatch, pick-up

or acceptance of goods is possible!