Blind, two feelers
Cavern fish were a race of non-sentient fish native to the dark caverns of Acra.
Cavern fish were decorated in silver scales, were completely blind, had no teeth whatsoever and had two long feelers to help them navigate the depths. They were the lowest form of life on Acra apart from plants and are prayed on by all carnivorous and omnivorous denizens of Acra. They only ate plant matter such as underwater plants and most things that found their way to the underground caverns.