Dinamika kualitas air pada pemeliharaan ikan jurung (Tor soro) yang dipelihara pada berbagai sistem resirkulasi

The recirculation system in the maintenance of tortoise will affect several water quality parameters, also known as dynamics. Water such temperature, DO, pH, turbidity, nitrate, nitrite, alkalinity, total hardness, TAN are parameters that directly related to physiological fish. purpose this study was see effect various systems on This used an experimental method with a completely randomized design (CRD) consisting 4 treatments and 3 replications fish were kept for 20 days. results obtained during research include physical chemical parameters. temperature between 24.5Co-27.6Co, highest measured current treatment, degree acidity (pH) average pH value ranged from 6.10-7.42. nitrite 0.041-0.083 mg/L. Nitrate values 4.40 5.32. alkalinity ranges 44.02 77.30 has large pH. Ammonia is produced excretory activity fish, ammonia 0.05 – 0.2 In study, survival rate found treatment 99%, lowest non-recirculating 53.5%. very influential jungle fish.Keywords: Dynamics system; jurung fish; maintenance; recirculation;