Acquired: Online breeder / seller
Posted Jun 25, 2015
My dad kept a three koi fish when I was growing up, one for each of his children. We had a magnificent golden koi, which visitors always admired. It was also the biggest one of the group and ironically, it was the smallest one when my dad first bought it for my sister, the youngest of three. And what most people don't realize is that koi will grow to enormous sizes. We had the three in one tank and it got very crowded. So if you plan in keeping more than one, buy a large tank with growth in mind.
Changing water in the tank or pond is the most work you'll have to do for koi fish. The water needs constant maintenance, so watch out for algae – they can take over very quickly if you're not paying attention. Because they are fish, you don't, and shouldn't, handle them too often. Don't tap on the glass or throw things into the water. Feed them once a day with special koi food and the fish should live for 15+ years. With their long elegant fins and tails, and iridescent scales, koi fish are a wonderful addition to any home.