6 Simple Tips For Preparing Your Pond For Winter In The UK

In this article we will explore 6 simple and easy to implement tips for preparing your pond for winter. These tips are primarily for those of you living in the UK however many of the tips will also be relevant for other countries and climates.

Below is a summary of the 6 tips;

1. Clear out your pond
2. Pumps and filters
3. Feeding your fish
4. Plants
5. Pond nets
6. Prevent your pond from freezing

Tip 1 – Clear out your pond

The first thing that we recommend in order for you to prepare your pond for winter is to clear out the pond of debris such as fallen leaves. To do this, you can simply use a net to scoop up the debris from the water. Leaving debris such as leaves in your pond can lead to chemicals and nutrients being released into the water which can be detrimental to your fish.

You can leave some debris at the bottom of your pond but only if it is a pond without fish. If you have wildlife in your pond, then you should regularly clear out and maintain your pond. Once you have used a net to clear out the leaves and debris you should use a sludge treatment or pond vacuum to ensure you have not missed any of the debris at the bottom of the pond.

It is important to clear out your pond regularly but especially before the winter months, and for good reason.

During the winter months fish tend to become dormant. So, if the leaves are left in the pond over winter, then this can cause some devasting bacterial infections for your fish.

This is because during winter months the fish’s digestion and immune systems do not work as effectively. Therefore, if you leave your fish in the water with the waste and sediment then this can cause health problems for your fish.

Tip 2 – Pumps and filters

The second tip that we recommend for your pond in preparation for the winter months is to check the pumps or water filters. Before the winter months approach you should consider raising any pumps you have up the pond.

At the bottom of your pond will be a few degrees warmer than the surface of the water. So, by moving the pump further up the pond will prevent you from pulling the warmer water in circulation with the colder water.

Therefore, by moving your pump higher up the pond you are going to allow some of your pond to remain warmer. This can help the fish to survive through the winter.

Tip 3 – Feeding your fish

Another tip recommended for preparing your pond for the winter is by changing the food you feed your fish and wildlife in the pond. You should monitor the temperature of your water during the autumn and as soon as your water falls to 10 degrees Celsius you should consider feeding your fish wheatgerm.

It is important that once your pond reaches 4-5 degrees Celsius you should stop feeding your fish completely. This is because their bodies become dormant which in turn stops their digestion. As a result, any food left inside the fish that is undigested will start to rot inside the fish which can kill them.

It is important to remember that fish are cold-blooded animals therefore the only way to control their temperature is through their surroundings. When the weather is cold this slows down their appetite and metabolism. This in turn can lead to problems like constipation or even worse, death, as they cannot break the food down.

Therefore, keeping an eye on the temperature of your pond and not feeding your fish if the temperature drops below 5 degrees Celsius is vital to ensuring your fish survive the winter.

Tip 4 – Plants

Another way in which you can prepare your pond for the winter is by looking after your plants. When the temperature starts to drop, usually in autumn, it is best to start pruning back all your aquatic and garden plants. When pruning, you should cut off all the dead stems and leaves so that they do not fall into your pond during the winter.

Dead plants and falling leaves can form debris in your pond. When these start to break down it can release harmful nutrients into the pond like nitrate and phosphate. This can cause severe harm to your fish, even more so if the fish are dormant and therefore will not be able to handle the release of these nutrients.

Another way you can protect your pond and its plants during the winter is take some of your plants indoor to avoid harsh weather and frost. It is recommended that you take non-hardy aquatic plants into the warmth during winter. Some of these plants could be water hyacinths or tropical lilies, but it always best to check whether your plants can handle being outside in the winter.

However, if you have more hardy marginal plants like water lilies, you can leave these in your pond. Although it is recommended that if you have a deep pond, that you move these types of plants into the deeper parts of your pond. Or if you have bog plants, you can simply just insulate these with straw or something similar to keep them protected.

Tip 5 – Pond nets

The penultimate way in which you can prepare your pond for the winter is to ensure you have a net over your pond. This can help you to prevent debris and wildlife getting into your pond which makes it a lot harder to maintain. Having a pond net makes regular maintenance a lot easier too.

Having a net over your pond can have really help and protect your fish during the winter months. This can stop predators getting into your pond and feeding on the fish. During winter the fish are dormant so cannot easily escape predators. Also, a lot of your plants will have been cut down or moved indoor so this means your fish will be easy to spot.

Tip 6 – Prevent your pond from freezing

The last tip that is recommended in order to prepare your pond for the winter is to ensure you have a de-icer or pond heater to stop your pond from freezing over. Allowing your pond to freeze over can have detrimental effects on your pond and fish. If your pond does freeze over this will trap in the carbon dioxide and prevent oxygen from getting into your pond. This can kill your fish.

An easy and effective way to stop your pond from freezing over is to add a pond de-icer during the winter months. This should prevent the pond from freezing over and causing damage to your fish. De-icer’s or pond heaters work to ensure that at least part of your pond does not freeze over. This can then allow the harmful gases to be released from the pond which would not be able to happen if your pond froze over.

However, if you do not have de-icer there are some other things that you could do to prevent your pond from freezing over. You could put a ball into your pond. As this moves around your pond it will help to break up any ice that is starting to form.

If you notice that your pond has frozen over, you should not crack or break the ice. The shock of breaking this can be harmful and could lead to the death of your fish. Instead, you could lay a hot water bottle onto the surface of the ice to allow it to slowly melt.

If you have a waterfall, then this could also prevent your pond from freezing over completely. Although if you are expecting very harsh conditions, it is usually advised that you switch off waterfalls or fountains. If the temperatures are that low and your pond has frozen over, then the water from the waterfall will rest on top and could cause your garden to flood as the water cannot go anywhere.

Conclusion

To conclude, winter is inevitable in all countries but that does not have to prevent you from preparing your pond for the winter.  

No matter what you decide to do to prepare your pond for the winter, it is vital that you do not allow your pond to freeze over. This stops the harmful gases that are trapped under the ice from being released. You could add a pond de-icer, or something like a ball into your pond so that your pond can never completely freeze over.

If you follow these 6 simple tips during the winter, then you will be able to maintain your pond and it should continue to thrive once the spring starts to come around.