So the garden pond is winterized


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Secure the pond pump

Freezing water expands and can develop so much pressure that bends the impeller of the pond pump and the device is unusable. Therefore, you should switch off your pond pump in winter, let it run empty and store frost-free until spring. The same applies to gargoyles and fountains, as long as they are not frost-resistant. Alternatively, submersible pumps can be lowered to a frost-proof water depth (at least 80 centimeters). By the way: In the meantime, the specialist retailer also offers pumps that the frost can no longer harm.

Remove foliage

In late autumn, the trees are already mostly bare, but still leaves are still blowing through the garden. If you do not remove it, it sinks to the bottom of the pond and becomes sludge. To prevent this, you should regularly fish floating leaves with a net, or - even better - protect the entire pond with a taut net before leaf entry.

pond Secateurs

Use a pond scissors to remove dead lily pads before they sink to the bottom of the pond

Cut back water plants

The yellowed leaves of water lilies and other floating plants are best cut off as far down as possible with a special pond scissors. The cutting tool has a long handle and can therefore be used from the edge of the pond. The cut leaves are removed with the nets or a gripping tool.
Dense stocks from underwater plants, you can cope carefully with a rake. But do not remove everything, because the winter-green species are also important suppliers of oxygen for the fish in the cold season.

Thinning reeds

Wide reed belts should now also thin out in the fall. Cut back the remaining plants only in the spring, because different insects use them now as winter quarters. In addition, the reedbed with closed ice cover is important for the gas exchange in the garden pond. If the dry stalks disturb you too much, you should not cut them back more than a hand's breadth above the water level.

Remove digested sludge

The sludge is a problem, especially in winter, because rotting processes releases toxic hydrogen sulfide gas. It can not escape from the frozen pond and dissolves in the water over time. Before the onset of winter, therefore, remove the digested sludge with a bucket on a stick or with an electric pond sludge sucker. The sludge can be applied to the compost in thin layers or simply applied as a fertilizer in the bed.

ice preventers

In order to protect your fish, they should use an iceholder in cold winter

Use ice freezer

As winter approaches, the fish retreat to deeper layers of the water and fall into a sort of winter rigidity until spring. Her heart beats in this state only about once a minute and her metabolism comes to a standstill. The animals consume only little oxygen in the winter rigidity and take up no more food.
The only dangers that threaten them in winter are the freezing and suffocation due to lack of oxygen or too high digester gas concentration in the water. The former can be ruled out if there is sufficient water depth (at least 80 centimeters), but the second can be a problem if the ice cover is closed. Therefore, you should place in time a so-called Eisfreihalter on the water surface.
Simple models consist of a Styrofoam ring with cover. They use the insulating effect of the plastic, but only keep the water open in the case of severe permafrost if they do not freeze up. Therefore use ice protectors with sink chambers: The sink chambers are filled with water before use and ensure that the ice freezer lies deeper in the water. Some units can be combined with pond aerators. The rising air bubbles inside keep the water surface better open and enrich the water with oxygen.
If you have not used the ice-freezer in time, you should not chop up the water surface, because the pressure and sound waves in the water wake the fish out of their winter rigidity. Instead, better thaw the ice with a hair dryer or hot water.

Video Board: Fish Pond Winterization.

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