Some people do water changes on a pond, some don't. You will have to make water changes if it is overstocked. However, if it isn't, large enough and planted enough you won't have to. I never do. But I do have an overflow outlet for when it rains. So I guess every time it rains my pond gets a water change. My pond has never smelled bad or anything. My guess that the reason your grandparent's pond smelled bad was due to a lack of water movement. Stagnate water always smells.
The deal with having a pond and being up north is that you have to know the depth to which your ground freezes and then dig the pond 1-2 feet deeper. This will enable you to overwinter the fish in the pond. Still, when you do want to build your pond, find someone in the area who specializes in ponds. Trust me, it was the best decision I ever made with my pond.
Have any of you guys browsed koi auction sites? They have beautiful fish, but they're sooo expensive. I've seen koi selling for over $2,000!!!
Also, would you rather buy a small koi and watch it grow or buy a large koi? I'm in a conundrum. All of my koi are 12 inches and larger. Koi of those size are $100+. As much as I love them, I can't afford to drop that much on a koi. But I'm worried that my larger koi would bully a small guy. Or that the small guy would be too shy to come out and starve to death (that happened to me before). Another option I have is just to not introduce anything new since I have a good thing going.
Ah, I see. Yeah..I don't think there were any filters in that thing..there was a waterfall, but sometimes it worked and sometimes it didn't.. -_-
yeah, I'd definitely have to dig it deep..it gets soo freaking cold here -_- snowing right now actually.
I did-once! I saw one that was even more than that! but it sure was purdy..
I'd get a baby and watch it grow :) I looove watching things grow :D like Mr.Bubbles was pretty small when I got him, now he's 2.5inches (give or take, he won't be still!)!
Thekoimaiden- I had never heard the story of hanako before, but I read a fact somewhere that the oldest documented koi lived to be 246!
And if you were wondering, we do generally have to be careful because it does get quite cold and since we live right on lake Ontario the temperatures fluctuate even more!
Id also love to show you some pictures but I've never actually taken any, ill take some in the summer when my pond isn't covered :) ill show you my fishie friends :)
The reason I want more koi is because I want to watch them grow up :) so I would probably get some between 4 and 6 inches. Also that way I won't really know what they're colours will turn out to be it'll be a surprise :) it will also help with costs.
I've seen some koi auctions where fish have been sold for over 500 000!!!!!! I couldn't believe it!
As for larger bullying the small, I can't see that happening. Koi are such a peaceful fish (at least mine are) I can maybe seeing mine giving them the cold shoulder since they are all so buddy-buddy :P
Zappity- the key to cutting down on the maintenance you have to do is the long run is to not cut corners when building. My pond has four bottom filters and eight jets. Without them, nothing in my pond would live because it wouldn't be able to keep up with the maintenance. Filtration and aeration is everything.
Woah. Okay :)
I love Koi. When I have a place of my own, I'd love to have a koi pond! I've really fallen in love with those long finned ones. (I don't know what they're called...I saw one in a pet store the other day. He and 3 other Koi were in a pond in the front of the store. He was solid white and just gorgeous!)
Ooh that sounds awesome :D