Do they sell koi fish in pet stores?

Yes, some pet stores do sell koi fish. Koi fish are a type of ornamental carp that are popular for their beautiful colors and patterns. They are typically kept in outdoor ponds, but can also be kept in aquariums. When choosing a koi fish for your pond or aquarium, it is important to consider the size of the fish, as well as the water quality and temperature. Koi fish can grow quite large, so it is important to have a pond or aquarium that is large enough to accommodate them. The water quality should be clean and free of pollutants, and the temperature should be between 65 and 75 degrees Fahrenheit. Koi fish are generally peaceful fish, but they can be territorial, so it is important to provide them with plenty of hiding places.