Whats this?

[dan89]

Can someone help me identify this critter? Ive looked on some of the sticky threads and im guessing its some kind of flat worm. There's a load of them in the tank, they mostly stick to the glass but ive also found them on my Duncan and zoas.

 

[Isaac Alves]

Definitely a flatworm. Maybe a “ghost” flatworm — sort of has that W shape on one side.

 

[Isaac Alves]

Springer’s Damsels or melanarus wrasse make good predators.