Thanks. Sorry pictures so small. Just wanted to clarify wasn't so much asking for an id on the piece, knew from research it should be Murano and a maker like Barbini posibly, but came upon it by chance and not familiar with aquariums ! and read that there a lot of copies and even downright fakes, so really was asking does it look authentic ? There are some excellent close up pictures on Great glass for instance. Bubble for bubble this one seems the same !
All best wishes