Shallow and deep ponds both have pros and cons. Shallower ponds, for example, better display decorative ornaments and rocks. They also allow homeowners to interact more with their pet fish and other wildlife.

Deeper ponds, on the other hand, are less prone to algae growth since light can on only reach a smaller percentage of the water. However, this type might require a more expensive pond liner and the fishes might also hide out of sight, under the rocks or at the bottom of the pond.

2. Keep it Suitable

In deciding on the shape of your pond, it’s best to gear towards simple and gentle curves. This is because sharp corners, jagged bits sticking out and dramatic inlets will all soften and eventually erode over time.

Unless you are willing to reinforce your pond’s sides sufficiently, you should stick to a rough circle or oval design.

4. Avoid Vertical Walls

It can be strenuous and costly to reinforce vertical walls in a backyard pond continually. It will require larger rocks that are heavier and more expensive.

If you opt for shallow banks, ideally less than halfway to a right-angle, you will only need smaller stones to be used as loose reinforcement.

5. Protect the Bottom

After following all the guidelines above in making your DIY pond, it’s time for you to fill it with water! Use a garden hose to do so but make sure not to fill it right to the top to allow room for initial rain.

You can also start adding fish and plants to your pond — but make sure to do a little research as some plants can be invasive while certain species of fish compete with one another and could quickly ruin your pond.