If you have fish in the garden pond, it is important to take some precautions before the weather becomes frosty. The fish's body temperature is the same temperature as the water, and if the water freezes, your fish will freeze to death.
Garden ponds over 80 cm
If your garden pond has a minimum depth of 80 cm, you don't have to worry about frozen fish.
The water level will then be so high that the pond will not freeze to the bottom, and the fish will therefore live well, as if it
was a lake in nature.
NOTE: It can be tempting to poke holes in the ice so that the fish can search for oxygen, but don't do it. When you tap the ice, you will create a pressure wave underwater which can cause damage to your fish.
Garden ponds under 80 cm
If you are the owner of a garden pond with a water level of less than 80 cm, you must ensure that parts of the pond cannot freeze to the bottom, so that the fish have somewhere to seek refuge in freezing weather. The easy solution is to let the pump run and to lay the outlet hose in the surface of the water so that it constantly creates movement and thus ensures that the water does not freeze. In case of severe frost, it may be necessary to buy an ice-free holder or ice cap, which is a box with a built-in pump that floats on the water and ensures that it is kept oxygenated and free of frost.
Fish hibernate in winter
Most fish breeds suitable for garden ponds go dormant during the cold winter months. Make sure you have some hiding places that your fish can hibernate safely and soundly. It is natural for them to hide before hibernation begins. Hiding places can, for example, consist of stones or pipes.
Change feed during the winter months
When the fish are dormant and when it is cold in general, they eat significantly less. This is because they have a somewhat lower metabolism in cool water. Therefore, you can switch to winter feed, which contains less protein or feed less altogether. Some types of fish can completely dispense with feeding over the winter, while others should
fed a few times a week. See our large selection of garden pond feed and accessories for the garden pond here.
Be ready with an air pump for spring
In spring, the oxygen level in the water will naturally be at its lowest after a frosty winter. Keep an eye on whether your fish are only swimming around the surface of the water. This is a sign that the oxygen level is too low. Attach an air pump to the lady so that the water is oxygenated. When the water has a fine oxygen level again, the fish will search deeper. Is there
in the case of a garden pond with a low water level, you should in any case add an air pump or have it switched on over the winter.
Avoid leaf fall
In autumn, you should cut branches of surrounding trees that can cause leaf fall in the pond, or at least remove fallen leaves from the water. You should also consider whether the plants in and around the garden pond should be cleaned out. Rotten and withered plant parts and leaves contaminate the water. Sive, on the other hand, is one
good idea to leave them on, as they supply the water with oxygen in the same way as a snorkel, and they also protect the fish against birds of prey.
Winter preparation of garden pond - to-do list
- Change to autumn feed / winter feed
- Have a pump ready to oxygenate the water if needed
- Remove leaves and rotten plants from the pond
- Provide hiding places for the fish