Large white flat worm?


Reef enthusiast
Ok this guy is new, I just did a water change and scraped all my glass. I did a scrub of my skimmer because it seemed clogged.

When I turned the lights back on this thing was on the glass, good or bad?

Its flat, white and has 2 little eyeballs on the top.

I believe that's a stomatella snail, it has a very thin, flat shell on top. Very good for your tank.