Red Finger Octocoral, Diodogorgia nodulifera, also called the colorful sea rod, is a deep-water, non-photosynthetic octocoral found off South Florida (and elsewhere in the Caribbean). There are two color phases of this species, this red phase and a yellow phase Both have white polyps and both are pretty hardy. The yellow phase seems to get bigger, sometimes 10 inches high, but the red phase seldom gets more than 6 inches high. As with all non-photosynthetic corals, you will need to feed them some sort of micro plankton type food, and it may need to be done at night. They will do best if the lighting is not very intense, so maybe find a shady place in your tank. They also like moving water, so a location near a moderate to strong water flow will be the best place for them.