The Trumpet Coral C. Echinulata is generally a solid color, usually green. It is very similar to its close relative, the Candycane CoralC. furcata, but there are some distinctions. The main differences in appearance are that the trumpet's polyps extend further from the skeleton at the edges giving it the look of a trumpet. Also, the trumpets' polyps are much more closely packed to give the appearance of one large coral. Another close relative, the Bullseye CoralC. Curvata is even more openly branched than the Candycane CoralC. furcata .
The C. Echinulata is easy to care for, it can be recommended to beginners. It likes a medium to low water movement and low to moderate lighting. These corals will expand at night or in the morning before the lights are turned on. They can be fed when its small tentacles are extended but it is not necessary.