Please Help ID

[BabyDee17]

I have an 8g biocube with 12lbs of LR and about 5lbs of LS. I have an Ocellaris clownfish, a mushroom coral, some feather dusters, a snail and a bunch of spaghetti worms. I recently found this and cannot figure out what it is. I know its small but any ideas would be greatly appreciated.. Thanks the pics arent great but its a little bluish/green polyp of some sort on the bottom of the rock. Ill try to get better pics soon

 

[Rutrag]

Looks like a sponge to me.

 

[BabyDee17]

better pic..its zoomed in...its greenish/whitish with a tongue or tentacle sticking out of it