The Guangzhou Grandview Aquarium said it wanted to take in giant pandas among thousands of other animals.
The windowless facility was criticised internationally after footage emerged of Pizza living in cramped conditions unsuitable for his species.
The aquarium has been at the centre of controversy since opening in January inside a shopping mall.
This week the aquarium holding the forlorn polar bear said it has “no need” for foreign interference, after activists offered to move the animal to a British zoo.
Animals Asia, a Hong Kong-based organisation, created a petition calling for the closure of the Grandview aquarium in the Chinese city of Guangzhou that attracted half a million signatures.
Photos of Pizza shared widely on social media show the bear lying listlessly on the ground in a gloomy, windowless room while visitors crowd around taking photos on their phones.