Black Branching Tubastrea
Like the regular Tubastrea (Sun coral), black suncorals need to be fed to stay healthy and grow. They open up in total darkness. What makes the black one different is the branching growth with polyps pointing in all different directions. The skin may be black, or it may be deep green like mine. When the polyps open up, they appear to be dark green, but slightly translucent. Gorgeous creature worth the effort, meaning regular target feedings to keep it happy throughout the week.
Look at this thing, lit up with an Azurelite after lights out.