Glowing Giant Star Coral Polyps Under Blue-Light

by | Apr 3, 2016 | Reef, Science | 0 comments

Good morning from the super HOT Caribbean!! I have some wild, “open for business” glowing Giant Star Coral Polyps for you all today that I found the other night at around 70 feet. Each one of these single polyps is about half inch in size and what makes this photo really cool is they are all open!
“Why’s that so cool,” you ask, “when all coral polyps are open at night??” It’s because for once I got a photo of it! When polyps are open (usually at night) they are mega-sensitive to light and will close in about 5-10 seconds and then re-open again later once they sense the darkness. MORE


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