How many koi fish can safely live in my koi pond?
Several factors influence whether a pond is habitable by fish, so before you stock your new pond or choose a few new finned friends at your water gardening store, take a few minutes to assess your fish’s dwelling space.
It all starts with the size of your pond! Pond fish generally need 10 gallons of water for every inch of their length, and you have to be ready for them to grow larger, so be careful not to overstock, no matter how tempting this may be!
For a 1000 gallon pond with excellent filtration and areation – you are maxed out at about 100 inches in koi (or 10x 10″ koi). Just keep in mind, these guys do grow! In a year or two, your 10″ koi will 12″-15″.
A safe number to start would be 8 small (3″-6″), or 5 medium (6″-10″) koi fish for every 1000 gallons.
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KOI VARIETY GUIDE
Trying to keep all of the varieties and variations of Koi straight can be challenging, if you have any questions, don’t hesitate to ask!
Koi come in these varieties below, but keep in mind you can also get these Koi in butterfly fin Koi.
Kohaku
Taisho Sanke
Showa Sanshoku
Tancho
Shiro Utsuri
Hi Utsuri
Ki Utsuri
Asagi
Shusui
Matsuba
Platinum Ogon
Yamabuki Ogon
Kujaku
Hariwake
Kikusui
Kumonryu
Beni Kumonryu
Chagoi
Soragoi
Ochiba Shigure
Goromo
Goshiki
Kikokuryu
Kin Kikokuryu