This is indeed a great store in the area. And recently I was surprised to find new Discuses there as well. They didn't sell them for years, I think after the change in ownership. 10 years ago they even had them in their huge show tank.
One really frustrating part about Tropiquarium is that their tanks are plagued with BBA. Yeah, they have a good selection of plants, but this BBA just makes me feel uncomfortable buying from them.