NaCl 58.5 g MgCl2.6H2O 9.75 g MgSO4.7H2O 15.25 g KCl 1.5 g NaBr 0.175 g NaHCO3 0.05 g CaCl2.2H2O 0.25 g Yeast extract 5 g Distilled water 1000 ml Adjust pH to 7.2 - 7.4. Sterilized at 121°C for 15 min.