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Giant Freshwater Prawn is one of the freshwater commodity which have an economy value where Nilem carp has also potentially to be cultured to produce fingerling size as a “baby fish”. The purpose of this experiment is to determine the optimal survival, growth, FCR, and productivity of Giant Freshwater Prawn and Nilem carp cultured on polyculture system and also biomass productivity of bio filter (snail, water spinach, and Cabomba). The different stocking density of Nilem carp as a treatments were as followed: A) 25 fish m -3  B) 50 fish m -3 , and C) 75 fish m -3 . Density of Giant Freshwater Prawn was 20 individuals m -3  for all treatments. The result showed that the optimal of survival, growth (length and weight), productivity and FCR for Giant Freshwater Prawn was found at density of 25 fish m -3  (A) than that of density 50 fish m -3  (B) and 75 fish m -3  (C) (P&lt;0.05). The highest of biomass productivity of bio filter (snail, water spinach, and Cabomba) was found at density of 25 fish m -3  (A) than that of density of 50 fish m -3  (B) and 75 fish m -3  (P&lt;0.05). Water quality such as DO, temperature and pH showed almost the same at all treatments.

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Polyculture of Giant Freshwater Prawn, Macrobrachium rosenbergii and Nilem Carp, <i>Osteochilus hasselti</i> Cultured in Recirculation System Using Biofiltration

Polyculture of Giant Freshwater Prawn, Macrobrachium rosenbergii and Nilem Carp, Osteochilus hasselti Cultured in Recirculation System Using Biofiltration