To the best of my knowledge, what is referred to as the "Bahama Star" is the Oreaster reticulatus, aka the "Reticulated Cushion Star". These are referred to as omnivores, and there is anecdotal evidence that they will readily consume raw bivavle flesh (clam. scallop, oyster, etc.).
Most reference material indicates that the diet of these stars consist mostly of sponges, and micro-organisms found in a DSB
, I would not keep this star with corals - what I can find on it indicates that it will eat other invertebrates, and may eat coral polyps.
I would definitely try to feed it some small chunks of oyser, clam, scallop, etc.
, this star can grow up to 20" in diameter.