Rough Star Coral

About

Rough star coral (Isophyllia rigida) is a stony coral native to the Western Atlantic, ranging from Bermuda and the southeastern United States down through the Caribbean to Venezuela. In the wild it turns up across a variety of reef settings, though it seems especially at home in surge channels where water movement is strong and unpredictable. The colony structure is massive and cerioid, meaning the individual corallites share walls rather than standing apart, giving the surface a textured, almost brain-coral-like appearance. The septa are thin with fine, pointed teeth, and the columellae are poorly developed. Coloration tends toward mottled grey-green, with the valleys and ridges often showing contrasting tones that give the coral a subtle but interesting visual depth. It can be found from the shallows down to around 35 meters. In the aquarium this is considered a beginner-friendly LPS coral, which is a pleasant surprise given how many Atlantic stony corals can be fussy. Moderate lighting and moderate flow suit it well, echoing the conditions it experiences on natural reef structures. Its tolerance for variable water movement, combined with its manageable care requirements, makes it a reasonable choice for hobbyists looking to keep an Atlantic species without taking on an advanced-level challenge.