I think the green or whitish green animals are sea anemone, individual photograph required for further identification.

I agree with Prasad. They look like sea anemones.

The other organisms are Zoanthids, Zoanthus sansibaricus and Palythoa mutuki. 

Obviously the larger ones are antozoa, but I think you refer to the smaller tubes they should  be polychaetes, but as suggested by other people we need more clear pictures . However is impossible only from the tube to identify them