pectoral

Hello reefing friends, I’m hoping you can enlighten me on what’s going on with Hank the Hawkfish. Today is quarantine day 8. His breathing has been more rapid, and today he is gasping, but his colors are looking good. No white spots, tank salt just settled. What is going on with his pectoral...

Two new Ocellaris clowns arrived yesterday and the smaller of the two has dark areas at the base of the pectoral fins. Seems to be the same on both sides of the fish. What I can't tell is whether it's on the skin or if it's an internal coloration. Any ID on this would be appreciated...