Koi - Aquarium

* How to play There are no difficult elements, basically you just look at the beautiful carp and goldfish. Move your point of view and observe the carp and goldfish from various angles. * How to increase carp and goldfish? If you tap it, the liking of carp and goldfish will increase, and you can purchase the number of carp and goldfish by exchanging the liking for diamonds at the shop. There is also a function to get diamonds several times a day, so please use it.