One-polyp fragment of a coral growing in the care of Pennsylvania reefkeeper Dan Rigle.

NAME THAT CORAL

Clues

1] Distribution: Indo-Pacific

2] Extends long feeding tentacles at night.

3] Adult colonies have distinctive appearance, although colors are variable.

4] In a peak of popularity a few years ago, “Rainbow” morphs of this coral were reported to sell in the $1,000-$1,500 range.

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Give-Away Hint

Here is a an adult colony skeleton of this species, from the Smithsonian collection:

Coral Skeleton. Credit: Carl C. Hansen (Smithsonian Institution)

Post Answers or comments below.
Answer coming via the CORAL Magazine Newsletter, May 17, 2019.

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