Biofertilizer is a biological fertilizer that contains microorganisms that can increase the abundance of zooplankton. This research was conducted on April until Juni 2018, in the peat soil of ponds at PetaniNenas Street. KualuNenas Village, Kampar district, Riau Province.Observation of zooplankton have been done in the Laboratory of Environment Quality of Aquaqulture, Fisheries and marine …