Common names include Orange Polyp Coral, Rose Coral, and Sun Coral. This mostly cave dwelling stony coral is difficult to maintain. Color is usually yellow, but orange and somewhat red specimens show up from time-to-time. Tentacles are usually extended only during the night when it attempts to feed on zooplankton.
Be aware there is a small snail, Epitonium billeeanum, commonly called a 'Wentletrap' snail that feeds exclusively upon Tubastrea coccinea. (Clicking on the underlined name of this snail will bring up a photo of it.) The shell and mantle of this snail is bright orange or yellow, making it difficult to see. Inspect all specimens of Tubastrea carefully and remove these predators.
There's also a slug, Phestilla melanobrachia, that feeds solely upon Tubastrea. If it feeds on an orange polyp, it's orange colored. If it feeds upon a black polyp, it's a black color.
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