 Throughout the 1980s, sera increased its product lines with innovative and scientifically advanced foods, vitamins, and technological products.During these years the acclaimed sera Bio-Denitrator was launched, which was the first mechanism to target the biological breakdown of nitrate in an aquarium.With more than 200 products in the assortment, a team of scientists at its Heinsberg, Germany headquarters, international product distribution, and subsidiaries in North America, France, Italy, Chile and Japan, sera has gained a reputation as one of the leading forces in aquaculture today.