I’ve just noticed these tiny white dots appearing in my tank, I read they might be sporobid worms but they don’t appear the same spiral shape.
What might they be and are they harmful to my tank ? I just cleaned the glass and back of aquarium a few days ago and now it’s covered in tiny white spots (see photos)

What might they be and are they harmful to my tank ? I just cleaned the glass and back of aquarium a few days ago and now it’s covered in tiny white spots (see photos)



