sera – About us

sera has been manufacturing innovative high quality products for aquariums, ponds and terrariums for over 45 years, and is one of the most important manufacturers in these ranges worldwide.

sera – About us

From a one man enterprise to a global player

The success story of sera began more than four decades ago: Josef Ravnak - who already had gained excellent reputation with the selling live food for aquariums -, founded his own company in 1970. He first worked as a one man enterprise and developed the company into a leading supplier within the aquarium, pond and terrarium industry step by step.

Today, the family managed enterprise rich in tradition distributes their high quality food, care and technical products in more than 80 countries and has subsidiaries on almost all continents. Besides the company headquarter in Heinsberg/Germany, sera has further subsidiaries in the USA, France, Italy, the Czech Republic and China. The company has over 200 employees worldwide.

Full range supplier for aquariums, ponds and terrariums

The food range has always been the main business segment. sera revolutionized the branch with a unique freeze drying procedure in the 1970s. Conserving different food organisms, such as bloodworms or Tubifex, while optimally preserving their nutrients and vitamins became possible for the first time.

The high quality food types of the company quickly became a synonym for quality, reliability and appropriate nutrition. sera Vipan is a good example. The flake food classic has been in the product range since 1972 and still belongs to the bestsellers.

The product portfolio for aquarium care was constantly optimized and expanded. The water and plant care ranges as well as treatments for ornamental fish developed into further important mainstays for the company.

Besides high aquarium care expertise, sera also has many years of experience and competence in the pond sector as well as in terrarium care. Towards the end of the Seventies, an extensive pond range from various food types, water conditioning and care products is being created. Products for turtles and other reptiles are also added to the product range.

Furthermore, sera added technical items such as filters and filter media, meters for water parameters, lighting solutions as well as aquarium heaters to the product range during 1980s and 1990s.

Today, the sera range comprises an almost gapless complete range with matching products for the freshwater, marine, pond and terrarium ranges.

sera ensures the quality of the extensive range by adhering to the strict regulations of Good Manufacturing Practice. These regulations are acknowledged worldwide.

They serve as customer protection and extend over the entire production process – from quality control upon raw material arrival via the processing up to the finished product. Aquarists, terrarium keepers and pond owners all over the world appreciate this.

Quality “Made in Germany”

sera products are subject to strict quality requirements whose compliance is permanently being monitored in the in-house laboratory. The best example: the food for ornamental fish and reptiles. On the premises of the company in Heinsberg, the different sera products, such as food, care products, treatments or filter media, are manufactured and bottled or packaged on numerous production lines, and sent to the retailers right away. Usually, only a few days pass between manufacturing and arrival in the pet store. This ensures maximum freshness and long shelf life.

Meeting point for know-how and competence transfer

Quality, research and competence made sera a specialist in the aquarium, terrarium and pond care ranges. In their own expertise center in Heinsberg as well as in seminars taking place worldwide, the company transfers expertise to its trade partners in dozens of seminars. sera experts such as Dieter Untergasser and Professor Dr. Günter Schmahl regularly inform about practically relevant problem cases and solutions.

In addition the well proven offerings for specialized retailers, sera in cooperation with the Verband Deutscher Vereine für Aquarien- und Terrarienkunde (VDA; Association of German Clubs for Aquarium and Terrarium Care) holds seminars especially for veterinarians.

Aim: To make the veterinarians even more familiar with care and diagnostics of aquarium and pond fish. Trade and consumers both benefit equally – from improved animal protection, healthy animals and higher counseling quality.


Whether there are problematic water values, ornamental fish disease or questions about our products – we will be happy to provide personal support!

+49 (0) 2452 / 912615

Our product range

Freshwater aquarium


Marine aquarium




Visit our extensive guides about aquariums, ponds or terrariums. We provide support from the first steps via the correct feeding up to health questions – online or as a download

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