Live Koi Fish - 10-Lot Assorted Butterfly A Grade Quality 3-4 inches You get a 10-Lot Live Butterfly Koi Fish for your pond or aquarium. These Koi are 3"-4" in size, delivered overnight from Monday through Thursday. Our A grade mixed box will contain a varied and colorful assortment of fish representing many of the Japanese varieties. While the color and patterns wont be as refined as the higher grades, the colorless decorative grade fish have been removed. Perfect for pond owners looking for the best value. Quality Koi fish from top domestic and Japanese breeders delivered to your door! Ships in an insulated box with the utmost care. We only use One-Day delivery through UPS or Fedex, minimizing transit time as much as possible. Live Arrival Guaranteed. Acclimation guide by Aquarium Plants Discounts