Sera

sera was established in 1970 by Josef Ravnak. The business began by distributing live foods and gradually became a manufacturer of nutrition and care products for aquatic animals. Growth brought the company to Heinsberg in North Rhine-Westphalia; its move to the current corporate address is documented from 2008 and does not alter the historical founding date.

The range covers foods for ornamental and pond fish, water conditioners and tests, medicines, filter media, filters, pumps, and lighting. Sera also serves terrariums and reptiles, combining nutrition, habitat management, and equipment. In food production the company emphasizes formulation, processing, and internal control, while its technical lines allow aquariums and ponds to be equipped beyond feeding alone.

The business operates as sera GmbH and has built an international presence from its German base. The brand’s continuity rests on a portfolio that follows several stages of water management, from prevention to treatment. The official history supports 1970 and corrects occasional references to 1969; Ravnak remains the point of origin, while the present legal form and manufacturing facilities belong to later phases of development.