I suppose the real difference between this kind of pond and a rigid pre-formed one is that you usually do not need to attempt to sink the container in the ground and hide it
Create an oasis in your small garden by adding a water feature such as a fountain, pond, or birdbath!
DIY backyard cattle trough fish pond - 22 Small Garden or Backyard Aquarium Ideas Will Blow Your Mind
Small Pond Designs | Small Pond
Small Water Features and Ponds | small water feature built on patio
A little pond for the Newts and frogs.
MINI POND Water brings a magical quality to your garden, and is the key to life for so many creatures that live in it.
How to build a small garden pond that will attract beneficial wildlife
Do you want to add a water feature in your small garden? If yes, then create your own pond in a pot. Learn how to make a container water garden.
Small Pond Waterfall Ideas | ... edition: Ideas For The Smaller Yards That Want To Have A Fish Pond