what is this in my tank?

My tank has been set up for about 5 months now but over the last month im getting these small green 'disc' shaped things that grow on the live rock and glass. At first i thought it was some sort of algae but then i noticed they are actually alive and move! Im not sure how to describe them so here are some pics.
this is how they look attached to the glass:

this is kind of a blurry pic but it shows them growing on the rocks:
http://www.movietrance.com/tank2.jpg

can anyone tell me what these are and how to get rid of them??

 

that web address doesn't work for me. Tells me that it is a forbidden and that I don't have permission. see if you can show a picture another way.
It may possibly be some kind of flat worm though, but hard to say without seeing it.

 

i dont know why the pics wont work but i check out the flatworm and thats definitely it! i think its the Acoel flatworm. so now my next question is how do i get rid of these things?

 

Since you have live rock, though, i'm not sure what else you have in your tank, you probably don't want to use chemicals such as Formalin or Malachite or even copper due to the fact it could wipe out alot of the living organisms in your tank.
Therefore you may want to try using a freshwater dip. if there aren't to many of them try using tweezers and pick them out.
In the future try to use dips, proper acclimation, quarantine tank for newely aquired corals fish etc. to cut down on future biological diseases.
Hope this helps though this isn't really one of my specialties!

 

Fyi The Link Blocked Me Out Also, Same Message, Forbidden. I Have Never Run Into That Problem In My Tank Good Luck!!!!!!!

 

hmmm...well the pic sorta looks like some kind of polyp...but if you can get a better pic it would help

EDIT: My post count is my birth day XD 1987

 

Fix those pics so we can take a better look.

 

if indeed they are flatworms, use salifert flatworm exit...probably your best bet. syphon as many as you can out first then follow the directions they give you...hth.

 

i tried also i got forbidden i dunno what happens when it says that

 

Hi sorry dont know whats wrong with the pics but now my digital camera crapped out
after some further investigation I confirmed they are indeed flatworms so I am going to try that flatworm exit.