There’s something fishy going on here

A pod of Spinner Dolphins swims by. This week’s Sunday Stills challenge theme is ‘Groups.’ See more responses here. I’m going under the water for this. Captions on the photos. A school of Hawaiian Silversides. Yellowfin Goatfishes drift in tight groups as they rest during the day. A school of Convict Tangs spills over the edge of a ridge. Crocodile Needlefishes cruise near the surface of the water. Raccoon Butterflyfishes hang in the water. Blue Goatfishes and Bluefin Tevallies often hunt with an octopus or, here, a Whitemouth Moray Eel. Yellow Tangs feedings.