Is guangzhou zoo and ocean world the same?

The aquarium is located within the zoo. You can just walk from the north gate of zoo and go to the aquarium.
According to your requirements, you can buy the combo ticket. It costs CNY 130 per person, including the entrance fee of Aquarium, Zoo, Goldfish Garden and 3D Movie Hall. If you wanna enjoy other activities inside, you need to pay some extra money.