Flatworms?

Okay, thanks for all the great info. I did read online about the toxins released when they die and that really freaked me out. I should have got him out while I saw him - but I went to bed instead!! Hopefully I will see him again today and can get him.

Matt: The flow is fairly strong where I saw the worm. It was on my eagle eye zoas and they are in the middle of the tank, but have a Koralia 4 pointed pretty much right at them.

 

Oh also, why are they considered bad? I know they can reach huge numbers, but is there something else?

 

When they Die they Release Toxins,
Some eat Acropora Tissue
Some Smother out softies and kill then eventually

 

Hmmmm lame!