Tank 3 (species list in comment)

Brown-banded bambooshark (Chiloscyllium punctatum) (not signed)
Speckled catshark (Hemiscyllium trispeculare)
Zebra moray (Gymnomuraena zebra)
Honeycomb moray (Muraena melanotis) (not signed)
Red lionfish (Pterois volitans)
Emperor red snapper (Lutjanus sebae) (not signed)
Silver moony (Monodactylus argenteus)
Bluestreak cleaner wrasse (Labroides dimidiatus)
Desjardin's Sailfin Tang (Zebrasoma desjardinii)
White-freckled surgeonfish (Acanthurus maculiceps)

Signed, but not seen:
Pacific sail-fin surgeonfish (Zebrasoma velifer)

That's a nice looking tank. Thank you for including the complete list of species!