Yes, bacteria. And things do feed on that bacteria.
I seem to recall reading about a sulfur reducing bacteria (or archaea) that lived in acidic pools deep in caves which had no other species detected. They appeared to be a stable single species biome. I'll see if I can dig up an article about them.
EDIT: Not seeing anything. Might be remembering wrong.
However, there is nothing that would prevent a microculture from maintaining it's own population. I do it with yeast every time I make beer.
Last edited:
Upvote
0