Training Sun coral

[Dr. Dendrostein]

Somewhere in Hong Kong. These pictures was given to me from one of the members here.

 

[Katrina71]

I’ve got similar corals to that. Dendrophyllia- which also go by sun corals. There is a difference. But both being NPS. For mine, they open whenever they please. However, they do stay open most of the time. Light and time don’t seem to be a factor. When I add aminos to the tank, they tend to open. Then I feed frozen mixed food and they all just open up and eat.

Mine is open all the time.