Size of the Pond
When building a fish pond, there are many design details to consider. One of the most important factors to consider is its size. Many enthusiasts always seem to regret not building a bigger pond to accommodate a larger number of fish when they decide to add more in time. Therefore, consider how many fish you are willing to keep and stick to that number if you want to keep a small pond.
Danger of Small Animals
Small animals like raccoons and cats are the most common predators of pond fish. If you have pets or you live in a neighborhood where these animals can easily enter the premises, think twice before building your pond.
Some fish require lots of shade for them to thrive. Plan the type of vegetation you will plant to keep your fish in good condition.