How 2 Koi

Image of a large empty eight thousand to ten thousand gallon pond with vegetation growing around it.

Koi (Cyprinus carpio) or more accurately nishikigoi are an ornamental variant of common carp bred 200 years ago. It is only recently however that koi have developed the beautiful patterns we see today, they are often seen as a symbol of wealth and prestige. Koi can live as short as 15-25 years and as long as 100-200 years.

Koi typically grow to around 2-3 feet in length and the size of your pond should at least allow the koi to swim and turn freely in open water without constantly crashing into walls. Koi ponds should be at least 3-4 feet deep and at minimum around 1000-1500 US gallons, even then that is quite small for koi. If building a pond is too costly, purchasing a large above ground pool can be a much cheaper option, though not too pretty to look at however.

Table of Contents

  1. Quarantining New Fish
  2. Importance of Filtration
  3. Pond Mates for Koi
  4. Koi and Plants
  5. Treating Sick Fish
  6. List of Koi Diseases
  7. Butterfly Koi