This soft coral looks like a light brown broccoli and is very easy to keep and to propagate. If you just cut one of the "stalks" off with a razor blade and fix it to a small rock (with gentle rubber bands), in a few weeks the new coral will start growing, and the old one will regenerate the stalk. Brown mushrooms are to the left and macro algae to the upper right. The lower left may be an elegance.
A view of the colt's polyps. The ones in the center are withdrawn (for some unknown reason), while the remaining feathery polyps are extended for feeding.
A close-up of the polyps.
Even more magnification of the polyps. The comparison to a broccoli becomes more apparent.