Climbing perch (Anabas testudineus) is one of freshwater fish living in the swamp area in the Sawah Village. Information on the biological aspect of this fish, however, is limited. A study aims to understand the reproductive biological aspect of this fish has been conducted from March - April 2018. The fish was sampled once/week for a month period. They were 100 fishes, 36 males and 64 females.…