Actually not a big fan of fish, but a shrimp or lobster tank...yum
Just came back from Petsmart, the one at Tustin Market is the place to buy fish. They have cheapie mini gold fishes for like 29 cents. Shelves are nicely stocked, good lighting, a wall of aquariums to display. Fish dude was pretty helpful and seems to know what he's doing. Contrast that to Petco's (Culver) aquarium section, empty displays, less tanks, super bright store lighting, and the guy helping us was the stores dog trainer. Petco is the Walmart of pet supply store, Petsmart is more Costco/Whole Foods