Hi! Just found the forum. I have a 1600 gal outdoor pond that I dug myself about 3 years ago. I have about 10 young koi and a few goldfish along with a plague of gambusia that I am trying to weed out. Mosquito fish, anyone? I plan to build an additional and larger pond this year, as I know it's gonna get crowded as the koi grow. I would like to breed koi and possibly goldfish just for fun. I hope to learn a lot from this forum.