ID this.....

[dwculp]

I posted this in another forum but decided to repost here:

Found this guy crawling up the glass late last night.

 

[AlexS95]

Looks like some sort of nudibranch.

 

[mndfreeze]

Polyclad flatworm! snail killer!

 

[tspfish]

Looks like the same thing I had in my tank an a guy told me it was a polyclad flatworm. Everyone seem to think it was bad and almost always predatory. If you want to look at my thread it is, http://www.reefcentral.com/forums/showthread.php?t=1915932
Look at the second post down and you will see my pics that look exactly like yours. There is other more in depth treads if you want to search them.

 

[Brwestern]

Yes, snail killer. Catch it if you can.

 

[dwculp]

Next time I see him he is OUT of the tank! I wonder if he was eating the dozens upon dozens of snail eggs I have on the glass?