Very nice ponds everyone! Here is my family's pond that we have had for about 16 years. I'm not sure on the exact size because the depth ranges anywhere from 3ft deep to about half a foot in one area. It is about 15 by 15 feet in length and width though at the longest points so I'm guessing its between 2500 and 3000 Gallons. We used to have koi in it but they kept getting eaten by racoons and a blue heron so I currently only have my wolf fish in it and he seems to be doing very well so far. There is also a wild turtle in it that i found on my driveway and about 100 wild baby salamanders that are just developing legs right now.