I researched this several months ago after having an algae problem with kerosene I bought at a local hardware store. Prist is used in aircraft fuel as an anti-icing additive and to prevent bacterial or algae growth. For some reason the manufacturer stopped advertising it as anti-bacterial a few years ago. It's still the same stuff and still is effective at preventing bacteria growth. Now they just market it as an anti icing compound, I suspect that there was some legal reason for the change.

Kerosene is more readily available and cheaper than Jet A, at least around here, plus I don't like the smell of Jet A. Because of my past algae problem I bought a product at a local marine supply store that is used by boaters to prevent algae growth in diesel fuel. According to the bottle it is also effective in kerosene and aviation fuel. The 12 oz. bottle I bought is enough to treat 800 gallons. Looks like I have enough to last the rest of my life.

Joe