There are three kinds of aquariums in the game: regular, holiday, and renovation.
⭐ In regular aquariums, you earn stars by getting beauty points for buying fish and decorations.
🌴 In holiday aquariums you don't need to earn beauty points Instead, you need to earn the special event currency (unique to each event) to fill the progress bar and get rewards.
↔️ You can switch between your aquariums in the aquarium menu. It can be opened by selecting the Aquarium icon in the bottom left corner of the screen. You'll see three buttons there: Regular, Holiday, and Renovation. Use them to select the type of aquarium that interests you.
Please note: During holiday events, your fish in the holiday aquariums can also get hungry. Make sure to visit them regularly.