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.