International Science Community Association International Research Journal of Biological Sciences 2278-3202 7 11 2018 11 10 Comparison of water quality and composition of bioflocs reared in indoor and outdoor conditions 1 9 EN Sharma Arti 1 Department of Zoology, University of Jammu, J&K-180006, India Singh Radhika 2 Department of Zoology, University of Jammu, J&K-180006, India . Bandhana 3 Department of Zoology, University of Jammu, J&K-180006, India Sangotra Rashmi 4 Department of Zoology, University of Jammu, J&K-180006, India > Research Paper 2018 7 17 2018 11 10 The Optimum fish production is entirely dependent on the physicochemical and biological qualities of water. Therefore, understanding of water quality is required for successful pond management. In the present study, a 60-day experiment was carried out to culture bioflocs in indoor as well as outdoor conditions, with an objective to generate data of their water quality and its impact on the formation of bioflocs. For this, tubs were prepared by filling them with tap water and adding a small amount of cow dung along with pond soil and pond water in order to inoculate them with nitrifying and heterotrophic bacteria as well as phyto-and zooplanktons. Fingerlings of Cyprinus carpio were then introduced in the tubs for the accumulation of nitrogenous waste. Furthermore, molasses was added to the culture water as a cheap carbon source, to kick off the formation of bioflocs. Water analysis was done from time to time for the physico-chemical parameters viz. air temperature, water temperature, pH, DO, FCO2, ammonia, nitrites and nitrates. Analysis of physico-chemical parameters thus revealed optimum range for fish survival and therefore these can be successfully cultured in biofloc production systems. The data further suggested that the addition of molasses could effectively reduce inorganic nitrogen concentrations (i.e., ammonia and nitrite). Copyright@ International Science Community Association