This image is the tip (about an inch and a half) of the kind of soft coral seen in Pink Soft Coral at a Crevice. The stem takes in water in a current, thus expanding the surface area for absorbing nutrients from the water. The white bits in the stem are calcium calcitrate which helps keep the stem rigid. The challenge for me is that these gorgeous soft corals are most beautiful when there is a relatively strong current.
This image is very nice at any size and is available in cards.