Regular pond maintenance is important to keep your garden pond and its habitants clean and healthy.
Each pond is unique in its maintenance schedule, depending on its size,construction, plants and the fish and wildlife it has been stocked with.
As an example as pond that has been designed with a simple shape where the water can circulate freely and has a balance of plants and fish will require minimul maintenance, thinning of plants on a seasonal basis and checking the health of the koi/fish.
On the flip side a pond that has been designed with a complicated shape, shallow shelving and over hanging trees will need more attention. Without a filtration system appropriate for the size of the pond there may be areas where water will collect and stagnate.
Most gardens have trees in them , and these can cause problems for the garden pond owner. Falling to the bottom of the pond,where they decompose and give off noxioius gases which are harmful to the water quality and ultimately the health of the koi.
There are a number of ways to prevent this from happening. If you are having a new pond built then the incorporation of a bottom drain and built in pond skimmers is important .If you are addressing the problem of falling leaves in an existing pond, a floating pond skimmer can be purchased,and if neccessary a fine net can be placed over the pond to catch the leaves.
Weather can cause some additional upkeep,colder weather can cause problems with frost/ice sealing off the water surface preventing oxygen from reaching the water and the Koi. This is not much of a problem over a short period of timeasfish do slow down in the colder months and need less oxygen.
You can counteract the problem of a feezing pond with a pond heater and a good filtration and pump systems which circulates the water.
In very hot weather there is a danger of the pond water becoming too hot and oxygen levels becoming very low,causing the death of the Koiand other wildlife that inhabits the pond.
This is easily prevented by pumping water through an additional water feature ,such as a fountain. The drops of water from the fountain willbe re-charged with oxygen before returning to the pond.
Adding oxygenating plants to the pond will also aid in combatting against problems caused by the weather.
These plants absorb the carbon dioxide given out by the koi and return oxygen to the water. Incorporating pond plants into your pond will also help with the prevention of algae growth,as the plants will prevent sunlight from reaching parts of the pond water stopping the growth and spread of algae.
A deep pond clean every couple of years is great pond maintenance.This is a chance for debris to be removed and for the construction of the pond checked, with any repairs needed done at this time.
Water plants can be thinned out and the kois health can be checked over,this is also a good time to thin down the quantity of fish stock if its needed.