Common Causes of Stomach Pain, # 7: You're chewing gum to keep from snacking. Believe it or not, chomping on gum is a big cause of stomach pains. You often swallow lots of air, which can create gas and bloating, explains Christine Frissora, M.D., a gastroenterologist at NewYork-Presbyterian Hospital in New York City.
Garden Pond. A small garden pond with a waterfall should be deep enough that the bog and aquatic plants' soil are under 3 to 6 inches of water. Generally, garden ponds are 18 to 24 inches deep. With the addition of a filter, the waterfall will clean and aerate the pond water, allowing small aquatic creatures, such as turtles, frogs and fish, to thrive amid your water garden plants.
A koi pond should be 1000 gallons minimum. If you live in an area that freezes in the winter, part of the pond should be at least 4 feet deep. This isn't as big as it sounds, so bigger would definitely be better. The price depends on if you do the work yourself or hire someone else. You'll need a pond liner, filter, rock, plants, and fish. All that will probably cost about $1000-3000 depending on the size of the pond. Labor will roughly double the price. If you do it yourself you can rent a backhoe fairly inexpensively.