Indo-Pacific - Islands of the Indopacific including Fiji, Tonga, Solomon Islands, and the Great Barrier Reef.

Medium to high lighting would serve this species well. Galaxea can be kept under high output fluorescent bulbs, but may benefit from more intense lighting. It will likely change its coloration depending on the lighting provided. Galaxea may require a longer acclimation period to intense lighting such as metal halides.

Moderate water movement is recommended.

Galaxea relies heavily on the products of their zooxanthellae. This coral may benefit from the addition of phytoplankton as a food source. While the coral itself may consume some phytoplankton, the real benefit is the increased population of rotifers that feed on the phytoplankton. Rotifers make a good meal to a vast array of corals. If phytoplankton is not readily available, you may attempt to feed the coral finely ground meaty foods. The food should almost have a paste-like consistency before being administered.

Galaxea are one of the corals that extends long sweeper tentacles. Sweeper tentacles are often used as a means of defense against other encroaching coral colonies. Their white tips contain a concentration of nematcysts that can damage more delicate tank mates. Most of the time, this is not a major problem but to be safe, we recommend placing it in a location far from other corals initially.

This genus for the most part has been propagated extensively in captivity and is an excellent candidate for aquaculture. It is reasonable to believe that a sustainable harvest can be achieved in time.