Texas State Aquarium scales back to 50% capacity KRIS file photo. and last updated 2021-07-30 17:51:00-04 CORPUS CHRISTI, Texas â The Texas State Aquarium reports it is scaling back capacity at the attraction to 50%. The non-profit group says the edict is because the new number of new COVID-19 cases increasing locally and around the state. Officials at the aquarium said the facility will return back to 50% capacity effective on Saturday. The Aquarium will continue to operate with the primary goal of keeping guests, employees, volunteers, and the animal collection healthy. The Whataburger 4-D Theatre will also be operational at a 50% capacity.