hard corals

A close-up ofextended polyps of an apparently healthy great star coral colony (Montastraea cavernosa) on a reef near Fort Lauderdale, Florida. The tentacles surrounding the mouth of each polyp help trap food particles for the coral to eat. The brown coloration is from the symbiotic microalgae (Symbiodiniaceae) that live in the coral tissues. Credit: Valerie Paul
The first effective bacterial probiotic for treating and preventing stony coral tissue loss disease