What is this? Updated Picture
 

I found this guy this morning.
If it is a mantis, is my cleaner shrimp and Peppermint shrimp save?
http://lh3.ggpht.com/_Bdkca4dIJ6A/Sv...545%20copy.jpg
http://lh5.ggpht.com/_Bdkca4dIJ6A/Sv...2/DSC_1560.JPG
Now door closed. Amazing!
http://lh4.ggpht.com/_Bdkca4dIJ6A/Sv...601%20copy.jpg

Almost looks like a mantis.

I can't really say... Pic is too blurry.

If possible try to get another pic, clearer and larger. If possible.

I am leaning towards a mantis....sorry

So should I remove him or leave him?
My is a fish only tank.
Anyone wants him?

it is a mantis for sure from the second picture.

Ohh, looks like a big mantis to me.

100% mantis from the second picture! Whatever he can catch is fair game for his supper so nope, I would say shrimp are NOT safe!

Yup, 100% mantis! Anything it can catch is a meal.

Yup...100% that is a mantis shrimp.

Put some food on the end of a stick and wave it around in front of that hole. Good fun and great pets. Much more interesting than shrimp.