Apparently the fish shop in Coburg is pretty good. We never got to see it, despite it being a short distance from were we were staying. I Think it is in Bell St.
We managed to see the one by Vic Market, it's downstairs from the pet shop, and awfully hot and crammed. They have a large selection of reptiles there, which may account for the heat - but then again, it could be bad ventilation.
Should of taken a photo of the prices on the freezer, as they had rats for sale, that ranged from 'pinkys' to full grown!
Go and annoy the lionfish, my husband almost managed to get it to do a 360 in the tank by moving his finger in a circle on the front glass, it just hovers around and follows your finger with it's eyes, and when it gets out of range, it starts rotating!
The only downside was the manager packing a tanty behind the counter and throwing things because he thought the counter was a pigsty, not a good look in front of customers.