In Koi ponds and water gardens, natural stone is nearly always one of the key elements that pulls the aquatic habitat together into a fully-functioning ecosystem all its own. Aside from the essential water, stone enhances the atmosphere, makes wildlife more comfortable, and provides functionality. We at Apex Stone would love to walk you through the essential steps to consider when creating your very own Koi pond.

When deciding to create a Koi Pond in your garden, you should keep in mind that Koi ponds must be larger than the typical water garden, at no less than 1,000 gallons in volume, with bigger always being better. Your pond should also have at least one area with a minimum of 3 ft. in depth, with 4-5 ft. being even better. These measurements should be considered with the gravel you will lay in the bottom of the pond in mind.

Choose a location that can be seen and enjoyed year-round - probably close to your house. A key precaution would be to make sure that your pond is not located in a spot where runoff water could stream or fall in from a gutter or roof, as unfiltered water could carry harmful fertilizers and pesticides. Shade is fine for koi ponds, but because you will need to keep the water free of debris, it is important not to place a pond too near trees. You should also consider sunlight if you want plant life in your pond, and look into whether Koi eat certain plants and if not, how much sun the plants will need.

A filter is essential for the health of the Koi fish, and with the need of a filter comes the need of a pump. Water circulation will not only add to the atmosphere of your oasis but to the vitality of your Koi.

A recommended technique for choosing the size and shape of your pond is to simply lay out a garden hose or rope on the ground and simulate the pond's outline. Your finished pond will likely be 30% smaller than you visualize it. You should avoid building the Koi pond too small, as a larger pond is more stable and easier to maintain. Exaggerate measurements to accommodate for the pool liner, too.

When your size and shape has been absolutely determined, you can begin digging. The shelf method is recommended for keeping plants and varying depths. When researching which fish to purchase, you may inquire with the Koi specialist on preferences for the breed and their recommendations.

Once digging is complete, you should lay and bury and pond skimmers  or external filters in their proper location.

 

Line the pond with an underlayment cut and shaped with scissors or a utility knife. Taping smaller pieces together is ok and encouraged if it will prevent the underlay from moving when the liner is placed. After the underlayment, you can position the liner evenly, while minimizing wrinkles and folds.

Once the liner is in place, you can place any larger stone in its place and then line the pond with any stone coping you chose. Copingstone should not need to be mortared in place if it is sizable enough to withstand rocking. Mortaring would be required if there is a chance someone will step on the stone. You can now play with gravel and create elements like a cobblestone beach. The more stone/water rocks used to hide lining, the more natural the Koi pond will appear. Adding plants among waterstones will enhance the natural atmosphere further.

Once the hardscaping and plants are in place, you can add water! As the water fills, and still exposed liner should flatten out. After the pond is filled, add a dechlorinator and then any aquatic plants as soon as possible. Soon after, you can begin adding packaged bacteria to help the pond filter maintain a healthy aquatic environment.

When adding the fish, we highly recommend you add a few at a time over weeks to allow bacteria to be safely established. If you are looking for Koi fish, there are a number of Koi vendors throughout Houston.

If you have questions about water stone selection and hardscaping, contact us to learn more!