Flatworm ID

[XxRyosukexX]

Can I get an ID on these to see if they are harm to corals or not?

So just saw them recently except for the red one. I don't think the red one has done anything yet.

 

[cbrguy]

Planaria.. They are a pest, but they will not affect your corals unless they get out of control. Which they will So I'd get a wrasse on just use some FW Exit.