I just moved into this house and the previous owner left these fish so i dont know how old they are and their genetic history, each are about 4in. long now...two questions:
how big will the fish grow?
is this enough space for them?
Answers:
Remember that you should have no more then 1" of fish per One gallon of water. Koi can get rather large. I have seen them 14" long. Often fish will not out grow the amount of room they have. They just won't get as large as they normally would. Good luck...
WOW you cant even keep one in a 200g they grow over 3 feet each.
I would advise extending the pond or selling the fish, the fish cost a lot so yea, wait till they get bigger if you want for a more $
Don't listen to "Brain Storm" the 1" per gallon rule is by far the most idiotic, it can't even be applied to a pond and to fish who get over 36 inches.
They wont get that large because fish only grow unitl they have no room to grow.
nothing
They're still small enough that they'll still be okay, but Inert is absolutely right. It isn't going to be very long at all,and I mean like 6 months, before these koi, which grow very, very quickly, get to be 8 inches, 12 inches, 18 inches, 24 inches and more still and that many cannot be in such a tiny pond. As Inert said, either expand that pond into about a 800-1,000 gallon pond, or get sell and/or give away all but 1 or at best, 2.
whoa whoa u gotta get rid of quite a few koi they get huge. my friend has a koi he had it for 2 years now its a foot long and he got it like... well quite small