Sorry about all the unknown species, however there was hardly any specific signage (species etc), just general information. Some of the signage was very outdated.
@WhistlingKite24 - that's the way of public aquariums. It is their mission to teach visitors all about marine life, just so long as the visitors don't want to know what species they are looking at or anything about them.
Pretty much... the big stuff gets signed, but all the smaller fish and invertebrates generally aren't signed at all. Granted, signage for some reef tanks would be enormous.