Signed for: Yellow Tang (Zebrasoma flavescens), Purple Tang (Yellowtail Tang) (Zebrasoma xanthurum), Gem Tang (Zebrasoma gemmatum), Sohal Surgeonfish (Acanthurus sohal), Flame Angelfish (Centropyge loriculus), Ocellaris Clownfish (Amphiprion ocellaris), Clark's Clownfish (Amphiprion clarkii) [not seen], Longfin Anthias (Pseudanthias ventralis) [I think not this species - there are two fish at top right], Jewelled Blenny (Salarias fasciatus) [not seen], and Mandarin Fish (Synchiropus splendidus) [not seen].
Black Sea Cucumber (Holothuria atra) and Scarlet Cleaner Shrimp (Lysmata amboinensis) [at the very top] can also be seen in the photo.
Unsigned species seen in the tank [corrections welcomed!] were Blue Velvet Damselfish (Neoglyphidodon oxyodon) and Royal Dottyback (Pictichromis paccagnellae).
