Guidelines in Buying Koi fish
Understanding how Koi develop helps you to evaluate young fish. Here are some basic guidelines to consider when selecting fish
Health: Is the fish healthy? This is the number one priority. 
Personal Taste: Do you like the fish? Forget about whether it will win a show or not, do you want to add this fish to your collection? You should be really excited about buying a fish
Body Shape: Is the body shape full? The fish should be powerful looking and in balance – head, body, tail tube, fins.
Balance of Color: Color should be bright! Patterns tell a story.
As a koi owner, you will decide the quality and type of Koi you want. Invest your time in studying, searching, and building your system. Then enjoy your Koi.