FAA made with land meat instead of fish

The KNF Fuel recipe does not change whether you are using fish or other land based animals. The concept is to use sugar to control the moisture content of the material so that it will slowly ferment and the microbes will have a chance to disassemble the proteins into amino acids. The primary microbe doing the fermentation of KNF Fuel is KNF Police and there is more detail to that in this answer.

There are benefits to using fish over other land based animals based on the oils that are present in fish such as omega fatty acid balance, etc.

The original textbook recipe does call for the addition of KNF Medicine and KNF Microbes, but in practice they have been found to be not mandatory. KNF Microbes are added to mitigate smell and are listed as optional, and KNF Medicine is to speed up the metabolization of the microbes to digest the meat a bit faster.

IMO2 is never called for in any official recipe and may be a mistake introduced by that instructor.