I have a planted shrimp tank with top soil covered with black flourite as the substrate. Little mounds of dirt started appearing that had a hole in the middle (like a mini volcano). I started to notice that worms appear to be the reason. I need help identifying them and im looking for suggestions to get rid of them. Picture to follow shortly.
They are reddish/clearish and will swirl around when they come out of their hole.

They are reddish/clearish and will swirl around when they come out of their hole.