The white bag with blue mouth - any tentacles? If no it might be some kind of tunicate. If so, that's ok. Tunicates are filter feeders.
the white thing sticking out of your LR - can't tell what it is too haha, my hyperactive imagination suggests it's a barnacle
the brown polyp - should be some sort of paly. That's ok
the green anemone that likes light - that should be a majano. They are a rather interesting addition as long as you monitor their population