Basic pond design considerations and requirements to consider are the space, size, depth, light, and positioning of the pond. A pond should be in proportion with the overall size of the garden, complimenting and not dominating it.
For safety, surround the pond with a ringed fence or cover it with a heavy duty steel mesh which won`t collapse under a child`s weight. When considering a pond`s location, check for utility pipes. Too sunny a location means excessive growth of slimy blanket weed, while being too near a tree could result in unnecessary waste (ammonia) from leaves. A solution is to install a large filter or have less fish in the pond.
Bigger and deeper ponds are easier to maintain
The larger and deeper the pond the better, especially for healthy fish or for keeping Koi carp where a pond of at least 100cm deep is ideal. More hardy fish such as goldfish only need a pond depth of 60 – 70 cm. but keep in mind that the bigger they are the bigger/more powerful filter and pump you will need which will obviously cost more to purchase and keep running.
Flowing water / Waterfall
While flowing water is ideal for keeping fish as it generates more oxygen, water plants flourish better in still water and some do help oxygenate the pond. When still water becomes stagnant, it encourages mosquitoes. However, keeping fish helps to reduce a mosquito invasion. For any necessary plumbing or electrical wiring, check out regulations first.
Overview of the Building and installation process
Roughly mark out the edge and dig to the desired depth, ensuring that the top of the pond remains level all the way round. Next, place a layer of sand to prevent damage to the liner or underlay from any sharp stones. Line the pond, using paving slabs to help edge the pond and hold the lining in place. Then, fill with water. As the water begins to rise, make sure that the liner is correctly positioned, pressing firmly into all nooks and crannies and corners. For clear water, it is essential to add a pump, filter and UV. Plants can be added immediately, while a pond should be left for a week before fish are added.
To ensure that nothing fishy goes on, perform a pond test to see if the pond`s chemical levels, notably nitrite, nitrates and ammonia are `balanced.` Adding fish food upsets the balance, hence the need for a filtration process to remove `waste.` To combat any imbalance, a few teaspoons of aquarium salt to every gallon of water can be added as a quick remedy.