Bacillus subtilis is a rod-like bacterium found in soil and in the gastrointestinal tract of ruminants & humans. It is a Gram Positive bacteria.Pack Size: 1 x Bacterial SlopeStorage: Room Temperature (or in the fridge to pro-long life)Subculturing: MonthlyIncubation Temperature: 30°CBacillus subtilis becomes translucent with age and can give rise to unpredictable growth so to ensure success you may prefer to store this bacterial culture in fridge and sub-culture on a monthly basis.**Please note that all of our Bacterial Cultures have been developed for us in schools for educational purposes. They are not recommended for research or commercial use.**