Nephtheidae is a family of soft corals known as carnation corals, tree corals or colt soft corals. These corals are very striking and show a wide range of rich colors including red, pink, yellow and purple.

These corals are mainly tree-like in that they branch out and have little knobs on the end of their rubbery branches. Another name given these animals are broccoli corals, due to the fact that their polyps retract in the daytime, giving them the resemblance of the vegetable. The polyps emerge at night and extend their tentacles to feed, looking like bouquets of flowers on the ends of the branches.

These corals are popular with reef aquarium hobbyists. There are 14 genera in the Nephtheidae family of corals.