How do you intend to get the necessary protein for a colony up there?
Seems the intent is to create a saltwater aquaponics system.
Fair question.
The economy of a Moon base is built on plants: their food value for humans, their oxygen production, their ethanol production, and their food value to protein sources.
Hope that’s clear.
Excess ethanol and oxygen is exported for profit (hope the settlers don’t drink up their profits!) .