I have a couple corals I'm not to sure what they are. The first one i believe is an acan but it always has its polyps extended and most acans I see dont. The second green one I have no clue, it was an impulse buy. Thanks everyone!
The bottom picture is certainly acans. Those are its feeding tentacles. They come out at night quite often. The first I am not sure. Can you take a picture with whites? Does it have a skeleton? An obvious mouth? How many mouths? I have a few guesses, but would like to know more and see in white.