I went to Dallas North Aquarium. Far as I am concerned, they will always be at the top of my list. There are a couple others that I used to frequent, but after my last couple of trips to them, I won't be back. One actually had a big dead rotting fish stuck to one of the power heads. The other had so many sick and dying fish that it was just disgusting. If you find yourself on the west side of Fort Worth, franks tanks is another excellent store.