Is it a parasite?? On Glass

There seems to be atleast 50+ some bigger than others. They are on the glass. Look and move like a slug. Green in color with a read dot on the head. What are they?

 

Thanks for any help.

 

Sounds like some sort of nudibranch. The vast majority only eat one thing, any of your coral suffering?

 

Too hard to tell from the photos but sounds like flatworms of some kind. Any way you can get a better pic of them close up?

 

Corals are doing well.

I will try to get some better pics.

What is the solution to what you folks suggested they might be? I use Herbtana and artemiss would these help in this case?

 

They very much could be flatworms too. Depending on your tank size/stocking list a Melarunus wrasse would take care of both.

 

I'm not sure if all flatworms look alike but mine are clear with a little red/orange spot inside it.

 

looks like red planaria to me

 

Check out this link for acoel flatworms.

 

They are FW!!

Going to buy flatworm exit now!