ID guesses?

[dakar]

Found 2 of these guys in my newly cycled tank...Not sure exactly where they hitch hiked in from..

Guessing some sort of nudi... about 1" long now, they have been staying on the glass... but have been watching them fearing some sort of coral munchers...

Any guesses??

 

[cloak]

It looks kind of like the caulerpa slug in the link below. (Elysia)

http://www.lionfishlair.com/hitchhiker.shtml

 

[dakar]

Very similar in appearance... could very well be... we did get an order of macros from GCE last month, they could have made that trip and not been detected.