"They mostly come at night. Mostly." -- Biters in polluted areas become more aggressive at night. Includes an option to have biters only attack at night.
to have the small fast Bitters stay away from any light source like https://mods.factorio.com/mod/fire-place during the night. OR Generate a new set of weak bitters that keeps away from light and the normal small biters reduce it's spawn ratio.
It's an interesting idea but this involves messing with biter AI at a level that's beyond the scope of this mod. Perhaps Rampant or others could look at this..?
