Having a small aquarium is such a nice thing to beautify your garden. This is not only beneficial to make your garden look beautiful, but also can be a soothing place to have. A collection of fish with fountain and stones will be a perfect combination. While the kind of fish it depends on your preference.
There are many designs of the small garden aquarium. It can be fitted with the area of the garden itself. If possible, you can provide a set of chairs and table there. To make it perfect, just add some decorative plants. For the detail references, you can check in the following.