The Late Sri Kripan Sarkar was an enterprising ornamental fish breeder-cum-farmer par excellence, exporter and supplier of the same from northern part of West Bengal. As proprietor of Rainbow Ornamental Fish Farm, at Bakshipara Village in Jalpaiguri District, he was an expert and authority in scientific breeding, larval rearing, propagation, research and experimentation on economically important freshwater ornamental fishes. There was a time when Sri Sarkar was the only commercial ornamental fish breeder in north Bengal. This article documents his experiences and career as an influential pioneer in the ornamental fish culture trade.