pest id and solution (pics)

[mario4254]

hi there i have just noticed someting flat and brown that was moving on my ric .....i had those brown spots since i got the ric for a while but i tought it was just discoloration or something but today one moved looking closley i found more of them moving i started looking at other corals and i found them and all my rics and shrooms and even few on candy cane ........what are those and how do i get rid of those
http://reefcentral.com/gallery/data/500/180356143211921309_0_ALB_1_.jpg

http://reefcentral.com/gallery/data/500/180356741290921309_0_ALB_1_.jpg

http://reefcentral.com/gallery/data/500/180356662321921309_0_ALB_1_.jpg

http://reefcentral.com/gallery/data/500/180356143211921309_0_ALB_1_.jpg

[es1887]

not sure but looks like flatworms. a six line or a mandarin should eat them. you can also purchase flatworm exit by salifert. in that many numbers they can definitely star to harm corals

[DetectiveTofu]

yep, harmless flatworms, but they are a nuisance- and if they take off, they can smother corals. I'd siphon out as many as you can (siphon out all you see every day for two weeks), and see where that gets you. The flatworms thrive in high nutrient waters, and I IIRC are photosynthetic, but also feed off of DOM. If after two weeks of siphoning they are still there, hit your tank with some Salifert FE. A sixline may help also.

[mario4254]

i think im going to go with a target mandarin