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April 10, 2009
It is a simple and unavoidable truth that there is an inherent risk in having a pond when children are likely to be around. Drowning is one of the most common forms of accidental death in youngsters and this can happen both worryingly quickly and in a surprisingly small volume of water. As a pond owner, you need to consider whether this is a risk that is relevant to your own situation and if so, how to manage this.
The most effective way to protect children from the pond (or vice versa) is to create a physical barrier such as fence or wall or possibly another method that will stop easy access. The downside to this approach is that it may be very difficult due to the size or design of garden or, even if practical to achieve, the end result may be quite uncomplimentary to the garden design.
A common approach to ensuring safety without restricting access to the pond is to restrict access to the water within the pond. This can quite easily be done by using mesh. To install mesh for this purpose, it is essential that the mesh is strong enough and well supported enough to hold a child’s weight. A further requirement is to ensure that the mesh is securely anchored so that no little explorers can venture underneath.
It still pays to be vigilant wherever youngsters are around water but some simple steps should help to avoid disasters.
April 9, 2009
In simple terms, many of the activities that occur in nature are difficult to replicate in your garden pond. That is why a pump may be a necessary tool to maintain your pond as a healthy environment.
The key functions that the pump facilitates are aeration, filtration and creating water movement.
Aeration is essential, all pond life, including plants, requires oxygen to survive. In nature, aeration (or specifically oxygenation) occurs through oxygen being absorbed into water at the surface. This does happen in your pond also but due to the typical garden pond having a much higher concentration of fish and plants than would occur in nature, it is necessary to aid this process in all but the more modestly stocked or larger ponds. The method for aerating the water can be either, pumping air into the pond in much the same way as employed in an aquarium. Alternatively, this aeration need can be combined with creating a water feature such as a fountain or waterfall. The movement of water ensures that much more oxygen is absorbed than would be at just the water’s surface.
Filtration is required to manage both debris and pollutants in the water. There are a variety of filters available for garden ponds such as biological and Ultra Violet which again come in different forms. All of these will require water to be passed through them and this necessitates the installation of a pump.
April 8, 2009
Installing a waterfall is a popular method to introduce running water to your garden in a way that may appear more natural than a fountain. The benefit of having running water, besides the aesthetic appeal, is that it will oxygenate the water.
When designing and installing a waterfall the choices are very similar to those you faced when planning the pond itself. Water needs to be pumped to a collection pool that is higher than the pond itself and will then travel down a watertight channel that could be made using either a preformed liner, a flexible pond liner or concrete. The choice of liner will greatly affect the possible designs and also influence the longevity of the feature. Concrete is by far the longest lasting material but is also the least commonly used as its use is a more significant undertaking than that of either a preformed or flexible liner.
For a simple waterfall the preformed variety is the most straightforward approach and could be installed very quickly. A flexible liner will broaden your design horizons but will require much more detailed planning and preparation to ensure the water flows correctly and that steps are taken to protect the liner itself during installation.
Ideally, it is best to plan the feature at the same time as installing the pond. This has the advantage that the pond excavation will provide a ready supply of material for sculpting and landscaping your stream and waterfall.
One significant feature not to forget about is the choice of pump. It doesn’t require an act of genius to calculate that the more water you wish to see flowing downwards, the more you need to move upwards. As a general rule of thumb, each centimetre width of waterfall will require a pump to move 150 litres of water per hour.
April 7, 2009
Summertime is the best time to enjoy the fruits of your labours and appreciate your pond in all its colourful glory. Whilst it may be the most pleasurable time to be around the pond, there will still be some mild demands upon your time to ensure that everything is as it needs to be.
With the warm sun beating down on your back, it most likely comes as no surprise that the water temperature will rise. With fish being cold blooded creatures, they will thrive in this warmer environment. Consequently, with being more active they will also need to eat more, and subsequently produce more waste.
Whilst your fish are relishing this warmer spell, they will preferably be eating higher protein food, plants and algae will be thriving on the additional nitrates in the water and whilst all of this is going on, the oxygen held in the water is reducing.
These challenges should be easily managed but should not be taken for granted. Ensure that the pond has a good percentage of clear surface water and be proactive in managing plant growth to avoid the pond being suffocated. If you wish to ensure that your pond water remains well oxygenated it is possible to install an air pump that works on exactly the same principle as those used in aquaria. Managing algal growth where necessary and ensuring that any water lost through evaporation is replaced will ensure that your fish reside in a healthy environment through the summer months.
April 6, 2009
A wildlife pond will have some necessary features that may not necessarily be considered in creating an ornamental fish pond.
A wildlife pond probably benefits from having a more natural shape to the edge rather than a perfect angular shape so feel free to choose a natural contouring design that could possibly compliment an existing garden feature.
As most pond wildlife lives in the shallows of the water it is an absolute must that at least one edge is a gently sloping side where birds and frogs can wade in comfortably. The gradually varying depths of the pond also provide the extra benefits of varying planting depths and an easier escape route for any unfortunate wildlife , or even worse, children.
The best construction technique for a wildlife pond is to use a flexible pond liner. This will give the freedom of unrestricted design for the sloping beach effect. It will also enable you to lay some of the top soil removed in pond creation on top of the liner prior to filling with water. This will enable planting directly into the bottom of the pond without the use of pots.
It is also necessary to consider the environment surrounding the pond. Creatures such as frogs like shaded areas with a marshy feel to them which can be easily created around the pond providing effective planting is utilised.
April 5, 2009
British ponds are disappearing fast! As a result of this loss, your humble garden pond is potentially a key asset in maintaining part of our wildlife diversity. Even though your pond may not have been installed in response to altruistic tendencies there will be many benefits to wildlife visitors on a very small, to a much larger scale.
Historically Britain had a significantly large number of acres of ponds with natural land features collecting water. Agricultural ponds have existed for hundreds of years to both provide drinking water and potentially irrigation water. Village ponds have been a central resource for drinking water. Some of the biggest threats to these ponds have been land reclamation for many reasons, the stagnation of ponds that are no longer used and in some cases the poisoning of ponds through industrial or agricultural chemical use.
As a result of these losses, which are unlikely to be reversed, the pond inhabitants of Britain are adapting to the modern day environment and finding their way through necessity to humble garden ponds. The type of wildlife that migrates to your pond will vary depending on the type of environment you have created. It is for exactly this reason that many water gardeners choose to create a pond with wildlife in mind. Some of the more fortunate owners will even be able to create multiple ponds so that the differing requirements of their fish and the local wildlife can be met with different environments.
April 4, 2009
Your pond filter performs one primary function. That is to purify your pond water. Pond water is full of pollutants that are created by the metabolism of your fish and these require removing to avoid firstly stressing your fish and later causing health issues. The filter will have the added benefit of removing physical muck suspended in the water.
There are three basic arrangements for filters but one biological process is employed by all of them. The role of the filter is to biologically break down pollutants rather than to sieve muck. The filter contains a bacterial element that feeds on, and breaks down, the waste products of the fish. The filter requires water to be pumped through it to ensure that over a period of time, the entire volume of water in the pond is filtered and to also supply a steady flow of oxygenated water to the bacterial culture which performs the purification process . Without this flow of water the bacterial culture which initially take 4-6 weeks to establish itself will die.
The fundamental criteria for what type of filter you choose will be the volume of water in your pond in addition to some stocking considerations. Whilst stocking will greatly affect how much work a filter will need to do, the filter must be suitable for the volume of water.
The first of the three arrangements of filter is the gravity flow pond filters which are a low cost option suited to smaller ponds. Secondly, pressurized filters which are becoming the most popular. These are mid priced units that are compact and easy to clean, they can also be sited externally for easy access and minimum impact on the pond itself. Lastly specialised gravity or pressure filters are available for larger scale or specialist needs. These are the most expensive filters.
Pond filters themselves do not remove algae. To tackle algae requires use of a UV clarifier. It is possible to buy filters that combine a UVC device and this is a great option for maintaining water quality.
April 3, 2009
When designing a new pond there are many factors to consider. Some of the thoughts at the forefront of your mind will probably relate to the fish, plants and water features you are hoping to enjoy. There are a number of issues that need to be considered beyond these desires and some of these may be beyond the obvious practical decisions such as which liner to use.
When designing the pond it is important for most of us to work in a real space. This may involve being in the garden with bits of string and a tape measure but this will be time well spent. It is possible to create a perfect design purely on paper, or possibly a computer, but generally, people who achieve success with this approach are often skilled or experienced designers. It can prove extremely frustrating to have to compromise plans because your paper measurements and assumptions about space just don’t stack up in real life. These challenges will prove particularly frustrating once you have committed money which turns out to be wasted.
Some of the issues to consider are proximity to a water supply and proximity to a power supply. If you have trees in the garden, are you happy to put up with leaves falling in the pond? If so, can the pond be sighted upwind of the prevailing wind direction? Do you have poisonous trees? Where will you install waterfalls and other features. A further important decision is what approach you will have to pond safety. It is impossible to make a pond totally risk free but when starting from scratch you will be able to consider incorporating sensible features into your design. This may avoid making less desirable compromises later.
Designing a pond should be a fun experience, be it a simple water garden or an ornate Koi pond. It does, however, pay to prepare no matter what the intended use.
April 2, 2009
Algae are basically a very small form of water borne plant life. Algae exists in all water, be it pond, river or lake. Under most circumstances the algae cannot be seen as the quantity is relatively low and any new algae that is formed is countered by further algae dying. As a result, the quantity remains pretty level. When algae becomes visible, it is solely the occurrence that more algae is growing than is dying. There are many factors that will accelerate this growth process, one common example being warmer weather. Regardless of other conditions, the algae can only grow if there is a sufficient food source to support growing populations.
When tackling algae growth in your pond there are effectively two possibilities. These are to either actively kill the algae, or, to remove the food source and bring algal growth back into balance. The method employed to kill algae is a UV lamp. Whilst this will never completely eradicate the algae, a sufficiently powerful unit will kill sufficient levels to clear the water and maintain a normal balance. Water is pumped through a UV unit and the UV rays kill algae. The method for removing the food source is multifaceted. Nitrates are a bi-product of the fish themselves and any rotting fish food will also contribute as a food source. It is therefore essential to manage what is allowed to produce nutrients in the pond and to also use a biological pond filter to remove any excessive build up. If the food source is managed, the dependents on the food source can only possibly remain in balance.
April 1, 2009
Clear water, clean water and water suitable for your fish are not necessarily the same thing. The fundamental requirement of your fish is that they have clean water. What constitutes clean water for your fish may not be quite the same as your own personal interpretation of the word clean.
Firstly, it is important to separate the notion of clean from clear. The desire for the water to be clear is usually more of a desire on the part of the water gardener. Many fish such as Koi will enjoy a mud pond environment where they can probe the mud banks for nutrients. This inevitably creates unclear water and yet the fish do not mind. Your fish will always live in a compromised rather than a pure water environment. Fish themselves are continuously polluting their water with ammonia. Ammonia is broken down naturally in nature into nitrates that are a ready source of food for aquatic plant life. These very same plants are the oxygen providers to the water environment.
In most fish ponds it will be necessary to use a biological filter to carry out this process of ammonia breakdown as there will be insufficient natural bacteria to do so. A biological filter carries out two functions. Initially the water passes through a mechanical filter which is simply a sieving mechanism to catch the physical muck in the water. This element of filtration performs the primary role of clearing the water. The biological element of the filtering process involves the water passing through a dense culture of bacteria where ammonia is chemically broken down. This is effectively the step where water is cleaned of harmful pollutants.
An important necessity of the bio-filter is to have a continuous flow of water through a pump. Without a continuous flow, the bacteria will lose the oxygen that they require and shortly will die. A new bacterial culture is easily grown again but this does take around four to six weeks. If this should happen in your stocked pond you are potentially risking the health of your fish.
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