The success story of sera began five decades ago: Josef Ravnak, who already had gained an excellent reputation with the selling of 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. Sera ensures the quality of the extensive range by adhering to the strict regulations of Good Manufacturing Practice. These regulations are acknowledged worldwide.