Can anybody help ID please

[kiddbid]

They look like a top down silhouette of the starshipenterprise. I find them on the glass andsometimes floating in the water. Theylook like they actively swim but I think it?s just the way their shape catchesthe current. If I look closely, they?reon coral; seem to be turning my gold torches purple.


Any ideas? Thank you.

 

[greybolt03]

Looks like flatworms

http://www.melevsreef.com/node/651

 

[rookie07]

Flatworms.

 

[kiddbid]

Thanks for reply. They just seem to be on a Duncan and two torches but when I turkey bastered the corals the flatworms came off. Hate to use the tank as an experiment but will watch closely to see if they re-colonize same corals or new ones. None of my fish seemed to be interested in eating them.