Does anyone here have a fish pond in their yard? I have a small one, 3 ft deep, 3 ft wide and about 9 feet long. I have a few goldfish in there. They are hardy, the winters are relatively mild here in Seattle and supposedly they are more suitable for outdoor living than Koi in this climate (without heating the water or without bringing them inside for the winter). I don't even have to feed them. There is enough planton for the small number of fish I have in there. I haven't done any Googling yet but I'm thinking about expanding the size and maybe depth? I'm curious as to how many fish I could have, I'm worried about overbreeding, environmental concerns with a larger pond, etc. Do any of you have similar ponds in your yards?