Acropora millepora, along with other members of the genus Acropora, dominates the Indo-Pacific coral reefs.  A. millepora is a hardy coral, and it has been found to reach 5.1 mm in diameter during a period of 9.3 months. This species grows mostly vertically, which leads to a bushy morphology that is semi-erect. Polyps extend from vertical branch tips on an average of 1.2 to 1.5 cm.Acropora millepora must have adequate light. This light is often regarded as the factor that limits maximum depth of coral growth. The Color is commonly green with orange tips, also a distinctive bright salmon pink, pale green or blue and purple.

Zooxanthella/Light, It does not require additional food.