You probably don't realize it unless you are a scuba diver or are particularly interested but some corals including brain coral are fluorescent so #2 and #4 are within the realm of possibility if the coral was still alive. #5 not so much.
You probably don't realize it unless you are a scuba diver or are particularly interested but some corals including brain coral are fluorescent so #2 and #4 are within the realm of possibility if the coral was still alive. #5 not so much.
Thank you Retired CPO
. . . for sharing your knowledge with us . . . feather