Id this pleas

[rafatoy]

Hello to all, this just appear can anyone Id this little critter, safe or not? Can't tell myself, wife sent pic and says it moves????

 

[Tim Wheatley]

There is no image in your post.

 

[rafatoy]

Recently bought the leather coral you see to the right, been with me for a week now, might of hitchhike with the LR it came with..

 

[rafatoy]

Sorry forgot to send the pic

 

[rafatoy]

Picture up,,

 

[mr_X]

Some sort of Nudibranch. Hard to say if it's bad or good. There are a gillion different ones with a gillion different behaviors.
here are a few photos towards the bottom-
Indo Pacific Snails
and then there are links to lengthy I.D. web pages also.