Thanks tbendl. It's 9 ft diameter.It's pretty shallow on the front edge so it's not as many gallons as you would think. Maybe 600-700 gallons. Oh, it looks natural because my wife stopped me from enlarging it anymore a few years back so I just work on the landscaping of it now! Thanks haver, Those are all shubys. I have had a few quite a while and they keep having babies. Some of the colors are really interesting. There are a whole bunch of them now with white noses. i don't know quite how that came about. Maybe half regular gold fish and half shubunkin. I do have a lot of white comets now so maybe they are breeding with the shubunkins. Thanks!