Where are you going to place your pond? You want your pond to be close to electricity to run your pumps and for heat in the winter. You don't want your pond in direct sunlight because it will heat the water too much and your fish don't like hot water. Shade is an issue because trees shed their leaves and contaminate the pond. The roots from the trees can also grow into your pond.
Do you want goldfish or koi? Koi are very beautiful and hardy. However they can grow to be three feet in length. This is important to consider. If you want a small pond you should probably go with the goldfish.
The pond needs to be deep enough to protect the fish. It needs to be deep enough so your fish don't freeze in the winter and it needs to protect the fish from predators.
You also need some type of ledges and or plants to help provide your fish shelter.
Do a little research to figure out what type of plants are best for your area.Ponds can be built with several types of materials. Concrete can be expensive and you have to test the water because of the lime in concrete. Pre-molded liners are fast and easy to set up, but are usually too small for koi. Flexible liners are great for different pond designs. It can be a lot of work and it will tear. Rubber liner comes in sheets and is made specifically for pond use. It can also last up to 20 years.
Figure out your design and get your hole dug before buying your liner. This way you have accurate measurements and you don't run out of liner.
Decorating your pond is where you can make it your own. You have alot of different options. You can do an island, waterfall, fountains, plants and even lights.
Plants are great for the water and provide a place for your fish to hide.
You can get floating plants, shallow plants, and submerged plants. Be careful with the floating plants so your fish don't eat them right away.
