Oculina diffusa, commonly known as the diffuse ivory bush coral or ivory tree coral, is found in the eastern Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea.

Colonies have been recorded at temperatures ranging from 13–31 degrees Celsius.

Oculina diffusa normally eat plankton and small fish, though some have also been known to filter feed on tiny particles in the water.

Oculina diffusa reproduces sexually by broadcast spawning.

[4] After being planktonic, the larva sinks to the bottom where it grows into a polyp.