For whatever reason, I wasn't really impressed with this particular aquarium. They just did not seem to have the wide array of fish and aquatic life that other aquariums in the area have. Not to mention, the tanks were dirty and Fair Park isn't exactly the nicest part of town in Dallas.
About the only thing the Dallas Aquarium had going for it was the piranha feeding. Still, I'd look elsewhere in the area for a better aquarium.