Diploastrea is not commonly available to hobbyists. Vivid's Diploastrea is light green with purple eyes. We grow and frag this coral here at Vivid Aquariums. The tentacles of this coral extend only at night.
It is important that proper calcium and alkalinity levels are maintained. Use of Kalkwasser Mix or a calcium reactor will be of great benefit.
Place the Diploastrea Coral on an exposed rock in the aquarium where currents will be able to supply it with necessary nutrients and trace elements.
Supplement its diet with the addition of trace elements, marine snow, phytoplankton, and food for filter feeders.