I've got 3 things on a rock full of stuff that I'm trying to ID. Any help would be appreciated!
subject A:
small colony of little guys. they seem to be out a tad more at night, but honestly I haven't seen much action from them:
Subject B:
These come out at night, though during the day they are partly out. They are near crystal clear with small spots on them and seem to have a calcified base they come out of. I think there are 3 of these on the rock
Subject C:
These have me a bit worried. They much prefer the night. They have peculiar branch shaped extensions that will roll back and appear to feed a mouth. fascinating to watch, though they have me worried. they are very shy and very hard to see if the extensions are all the way in. Two of these I've spotted.
thanks!
subject A:
small colony of little guys. they seem to be out a tad more at night, but honestly I haven't seen much action from them:

Subject B:
These come out at night, though during the day they are partly out. They are near crystal clear with small spots on them and seem to have a calcified base they come out of. I think there are 3 of these on the rock

Subject C:
These have me a bit worried. They much prefer the night. They have peculiar branch shaped extensions that will roll back and appear to feed a mouth. fascinating to watch, though they have me worried. they are very shy and very hard to see if the extensions are all the way in. Two of these I've spotted.

thanks!