Beginner-friendly fish are usually the cheapest option at PetSmart and sell from $2 to $23 per fish. Goldfish can range from $2 to $5, with feeder goldfish being the cheapest. Betta fish can cost anywhere from $2 to $25 depending on the type of betta fish. Shoaling fish like guppies, mollies, or platys typically sell from $1 to $3 per fish. I had koi fish 5 inches in a 75 gallon tank fit 2 years then finally got a 180 gallon for them and they have been in it 3 years with only measuring 7 inches. I put a new koi in the aquarium so we could test the theory to see if the Koi fish that were in the 75 gallon were stunted. View real examples of koi colors from Kohaku, Showa, and Taisho Sanke using actual koi images from our koi for sale. Get ready to learn about koi variety identification basics and why these types of koi are classified as Gosanke. Japanese Koi Variety Explanation: 3 Most Popular Types (Gosanke - Kohaku, Showa, Taisho Sanke) The Biggest Koi Fish in the World. The biggest koi fish ever recorded was named “Big Girl” and was kept at a private pond in Higashiomi, Shiga Prefecture, Japan. Big Girl measured an impressive 4 feet long and weighed a whopping 91 pounds! Another giant koi fish was named “S Legend” and was bred by Sakai Fish Farm in Hiroshima Free boarding until 12/31/2021. For Koi below 20”, $100 until 4/30. For Koi over 20”, $200 until 4/30. For customers who buy a Koi for $2500+ or $5,000 combined, we are offering FREE boarding until April 30th. Kodama Koi Farm GUARANTEES the lives of your Koi. In case a Koi dies, Kodama Koi Farm will provide store credit towards new Koi. How Much Do Koi Fish Cost? in Categories Informational. Informational. Keeping koi fish is an exciting hobby. Koi are colorful and active and make a fun conversation Keeping water healthy, keeps your Koi healthy! Did you know that about 75% of a fish’s body is water, just like 60% of your body is water? This means it is even more important to have healthy water for Koi than humans. When you consider that Koi live and breathe in water, you can tell how much of an impact that water quality affects Koi health. For Koi over 20”, $200 until 4/30. For customers who buy Niigata Koi for $2500+ or $5,000 combined, we are offering FREE boarding until April 30th. *Boarding can not be combined with any other auction koi or other fixed price koi. This promotion is only offered with the koi coming from the Niigata Harvest. Guide to the cost of koi fish and how much koi fish are worth from top breeders and How much is a golden koi fish? 1. Ki Utsuri. Ki Utsuri are a variety of black koi fish with yellow splotches all over their bodies. They are members of the Utsurimono family and are considered among the rarest of koi varieties. How much do koi sell for? Koi fish typically cost around $20-$50 for a healthy koi measuring around 5u2033 in length. lWtUW.