I don't believe NF contains and "good bacteria" but rather creates the environment that support them. From their info...
"Promotes healthy aerobic bacteria by creating oxygen (aerating the tank)
Creates a happy environment for your bacteria to multiply and digest waste build-up"
" [NF] is not a treatment enzyme biocide or perfumed product but a blend of chemicals that, when introduced into your sanitary system will very quickly neutralize hydrogen sulphides (unwanted odors), clean pipes and liquefy solids in your holding tank."