Question

Why dies nitrifucation need two different types of bacteria?

Answer 1

nitrification. Nitrification is the process by which ammonia is converted to nitrites (NO2-) and then nitrates (NO3-). This process naturally occurs in the environment, where it is carried out by specialized bacteria. ... The nitrification process is carried out by two different types of bacteria.

Answer 2

The nitrification process requires the mediation of two distinct groups:

bacteria that convert ammonia to nitrite and bacteria that convert nitrites to nitrates