In general should be in a pond, but for a year or two with extreme filtration, and frequent water changes.... you can make it work. Hence the website we are at MONSTER FISH .... the rule of thumb in ponds is about 150 gallons of water per fish..... or better, like 200 or 300 gallons per fish. That being said a resturaunt we frequent has a 150 gallon tank with about 6 KOI about 16" to 24" and their old KOI's are over 15 years old..... but they do 100% water changes once to twice a week
In general should be in a pond, but for a year or two with extreme filtration, and frequent water changes.... you can make it work. Hence the website we are at MONSTER FISH .... the rule of thumb in ponds is about 150 gallons of water per fish..... or better, like 200 or 300 gallons per fish. That being said a resturaunt we frequent has a 150 gallon tank with about 6 KOI about 16" to 24" and their old KOI's are over 15 years old..... but they do 100% water changes once to twice a week
Agreed. But all advice, is opinion, and with cavats. I didn't say keep 100 KOI, in 1 gallon either. And also suggested they get moved into ponds. After doing a lot of SCUBA diving, I would also like to put all the salt water fish back in their natural environment too. Also my opinon.