There is an in-game Store where you can buy different things for your aquarium using coins. The decor items you buy increase your aquarium's Beauty. All items in the Store are divided between different tabs:
1. Fish.
2. Regular decorations.
3. Thematic decorations (grouped by aquarium style as shown in the tabs at the bottom of the window).
How do I decorate my aquarium?
Last Updated: 7h