Please help identify. I'm thinking it may be some kind of slug?

[Carebearsss.x]

Please help me identify. I'm very new with this. Thinking it could be a sea slug

 

[Mr Fishface]

Looks like a flatworm to me.

 

[fishguy242]

+1 flatworm

 

[Carebearsss.x]

Thank you!

 

[fishguy242]

imo get something that eats them,
welcome to the reef ,should post in meet and greet meet the reef,happy reefing

 

[vetteguy53081]

Net it out. If there are several, melanurus or Lunare wrasse will eat them. So will a blue velvet nudibranch.
Last option is flatworm stop

 

[Fishy212]

Manually remove any that you see on your glass. I had a flatworm issue and had flatworm exit standing by. I don’t like the idea of using chemical products . I am more of a natural treatment personally, I let the copepods and flatworms battle it out on which species will take over the tank. The copepods won and I rarely even see the flatworms anymore. I also have a mandarin that eats them up too