Tubastraea coccinea, the orange cup coral (family Dendrophylliidae), is an azooxanthellate colonial scleractinian coral native to the Indo-Pacific but invasive in the Caribbean and Gulf of Mexico, where it has spread rapidly since its introduction in the 1940s and now threatens native benthic communities by outcompeting sponges, gorgonians, and native corals for space. Its large, bright orange polyps lack photosymbionts and feed exclusively on zooplankton and suspended organic matter. It is considered one of the most invasive marine organisms in the Atlantic basin. Genomic data have been generated for this species and are available in public databases, enabling comparative studies of cnidarian evolution and ecology.