Several species of gorgonian octocorals occur on deep reefs. Nicella schmitti,
shown here, lacks zooxanthellae, but feeds on particulates and small
zooplankton that are abundant along walls.
Image ID: reef3866, NOAA's Coral Kingdom Collection Location: Caribbean Sea, Cayman Islands Photo Date: 2007 May 27 Credit: Twilight Zone Expedition Team 2007, NOAA-OE