hello

[koiguy1969]

build...dollar for dollar you CANNOT buy better.... and yes you could support a few koi in that pond just make it hold at least 2' of water...refference this:
https://www.gardenpondforum.com/wintering-pond-basement-10-09-09-a-t4504.html

 

[DrDave]

My upper pond is 18" and my lower pond is 30". I keep the larger, breeder Koi in the deep pond and the juviniles in the upper one. They are connected with a stream but the way I did it they cannot migrate.

 

[mike3628]

hello
yes it will be 2 ft deep. still think ill stick with the goldfish for this size. i have never had koi but if they are as addictive as goldfish i would end up being over stocked faster then i could say it.and yes i have seen your video already and i like the one where you put the camera in the zip lock bag. your fish are beautiful and the indoor pond looks great.

 

[koikeepr]

you're a wise man, Mike.