Yep they were definitly flat worms. I went to the LFS
and bought some flat worm exit, and the second I treated the tank, The flat worms began to vacate all my corals instantly! It was actually pretty neat to watch. They were running for their lives, and falling off the corals.
I plan on doing a 20g water change this afternoon, so that should hopefully take care of any toxins..
how long after the treatment should I run the activated carbon? How long does it take for the flat worms to die? should I re-treat, if so when?