Sea Center Texas is a marine aquarium, fish hatchery and nature center operated by Texas Parks and Wildlife Department. See saltwater aquariums showcasing the diversity of the Texas coast and tour the largest redfish hatchery in the world. Reservations required for hatchery tours. Hours for visitation are Tuesday through Saturday 9 am-4 pm, Sunday 1-4 pm, Closed Mondays. Aquarium feedings Wednesdays and Fridays at 10:30 am. Free Admission and Tours.