Biofertilizer formulation was an alternative to improved productivity of peatland because it can improved water quality and increased abundace of benthos in water as decomposer. This research was conducted in March-April 2018 at the Peatland of Kualu Nenas Village, Tambang, Kampar, Riau. This study used an experimental method Completely Randomized Design (CRD) 1 factor with 5 levels of trea…