what are these things some kinda snail?
spanko Active Member Nov 5, 2008 #2 Spirorbid worms. Harmless filter feeders. Scrape them off the glass if they are obstructing your view. The second to the last picture looks like planaria, flatworm.
Spirorbid worms. Harmless filter feeders. Scrape them off the glass if they are obstructing your view. The second to the last picture looks like planaria, flatworm.
