Cyprinus carpio fingerlings were taken to measure acute toxicity in a set of four concentrations with three acclimation in triplicate of rock salt at 35 °C temperature which was prepared in the glass aquaria of each having dimensions 30L × 30W × 45H cm (40.5 liters water capacity) for 96hrs. Five fishes were stocked in each aquarium. Observations on fish mortality in all aquaria was observed and recorded for 2 months to determine the salinity effect on growth parameters. Important physico-chemical parameters of aquaria water, such as temperature, dissolved oxygen, pH, electric conductivity, total dissolved solids and chloride were observed using professional meter (HANNA HI 9828). Rate of mortality was increased with the increase of salt and temperature. The statistical analysis of variance of pH and pH (mV) differences was highly significant among salt and time while less significant among temperature values.

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