10 Ways How To Keep Your Pond Open In The Winter & Keep It From Freezing

In this article, you’ll learn how to keep a pond open in the winter‌, the best equipment to keep your pond from freezing and why a freezing pond is a bad thing.

Let’s begin.

Will Your Pond Freeze Over?

Since the water accessible to the air loses heat faster than the water at the bottom, landscape ponds, like all-natural water bodies, will almost always freeze from top to bottom. As the topmost water cools down, it starts to freeze, forming an ice coating on the pond’s surface.

Not all ponds will ice over; this is dependent on several circumstances, such as where you are living, the temperatures this year, and the depth of your pond. If it freezes only for a few days at a time, your fish can survive. If you don’t have any fish, then your pond freezing over need not be a concern.

Try one of these easy ways to stop ice from forming on your pond next winter. Here are three of my favorite picks;

  1. CrystalClear PondAir Aerator Kits 
  2. Farm Innovators All Pond De-Icer 
  3. AlpineReach Koi Pond Netting

Related: Look through and get inspired with our list of 35 Koi Pond Ideas.

Why Is Your Pond Freezing Over a Problem?

When a pond gets covered in Ice or snow, winter kills can take place. This refers to the death of fish, turtles, frogs, or other aquatic animals since the natural exchange of gases is stopped. There is only so much oxygen-rich water in a pond.

If the water has no mechanism of exchanging gases with the air, the oxygen that exists when the pond freezes are entirely all that exists. Thus, sealing animals and decomposing plants under Ice deplete the oxygen in the water, causing them to suffocate. This is a regular occurrence in nature, but it may be prevented in agricultural and recreational ponds.

The unpleasant aspect of a winter kill is that the actual impacts are not visible till the springtime thawing, when the deceased fish and frogs would be visible.

Ways to Prevent Your Pond from Freezing Over

Here are a few methods that can help you learn how to keep a pond open in the winter.

Use a Pond Aerators

If you have fish in your pond, keeping your pond aerator operating during the winter is a good idea. It will maintain the oxygen concentration in your pond and allow poisonous gases to escape via a gap in the Ice.

Related: Should I Leave My Pond Pump Running in the Winter

Use a Deicer or a Pond Heater

If your pond is less than three feet deep, you may need to consider installing a deicer to prevent the water from entirely icing over. In addition, if you opt to leave the snow in the pond during the winter, a deicer can help protect the Ice from destroying the pond’s features. A pond heater is also a valuable gadget for regulating the temperature of a pool.

Keep the Pond Clean

Clean out any dead and decaying vegetation from the water regularly to prevent gases from accumulating. This will ensure there is enough oxygen circulating through the water to allow your fish to survive.

Keep a Hole in the Ice

Maintain a hole in your pond by using a deicer. This way, your pond will have access to oxygen from the air.

Watch Ice Buildup

If you notice ice crystals beginning to form on the surface or if it starts to snow, you can preemptively decide which course of action to take. But, again, keeping an eye on your pond is critical.

Keep Your Filter Running

It’s critical to maintain your filter operating and functioning correctly throughout the winter for several reasons. First, the heater can aid in reducing biowaste and other nutrient degradation, maintain a more regulated pH level and reduce toxic fumes. It also prevents the water from being too still to Ice over.

Make Your Pond Deeper

A deeper pond stays warmer through the winter, while a shallow pond freezes over pretty fast.

Float Something

Floating something on the surface of your pond can stop it from completely freezing over. This is because the constant motion guided by the wind makes it difficult for the water to form ice crystals.

Cover Your Pond

Covering your pond is one of the simplest ways to trap the warmth from sunny days and retain it in the water. Netting, bubble wrap, or tarpaulin are some materials you can use.

Polystyrene Ice Preventer

A polystyrene ice preventer sits on top of the pond and operates with an air pump to pump air bubbles below the warmer parts of the pond, which subsequently raises the water, preventing it from freezing.

How to Keep a Pond from Freezing without Electricity

Aeration and gaseous exchange are critical for keeping your fish alive and healthy throughout the winter. Fortunately, there are ways to achieve this without electricity:

Increase Your Pond Depth

By having a deep pond, you will discover that the pond will maintain a reasonable temperature regardless of the weather. For instance, in the summer, a deep pond will be cool, while it will feel warm in the winter.

Use a Solar Pond Aerator

Solar pond aerators are another option for keeping your pond from freezing without the use of energy.

Use Solar Water Heaters

Solar water heaters are typically more expensive to buy and install than traditional water heaters. A solar water heater, on the other hand, can generally save you money down the road.

Use Floating Devices

When the wind blows across floating devices, they shift around on the water’s or ice’s surface, assuring that the hole you’ve formed doesn’t entirely seal over. They break up ice deposits and keep your pond snow-free by moving back and forth.

Don’t Do This to Your Pond in Winter.

Now that you know how to keep a pond open in the winter let’s discuss some things you should avoid.

Don’t Bang on the Ice or Poke Holes in the Ice.

If your pond is frozen over, do not try to make a hole in it yourself. This will inflict more harm than most people believe. In addition, the health of the fish inside can be jeopardized by pounding on the ice surface.

Don’t Use a Cheap Deicer.

A cheap deicer can stop functioning after a while, which might be detrimental for your fish.

Don’t Leave a Pond Heater Going Continuously.

Deicers use a lot of energy, and it is unnecessary to leave them on continuously. If you monitor the aeration hole, you will only need to use it for a few days once it starts to close up.

Don’t Turn Your Deicer Off If You Go Away.

If you are leaving for more than a few days, be sure to leave your deicer on. Regular pond maintenance is essential to keep it and its inhabitants healthy.

Never Let Your Fish Freeze

Your fish will freeze if you don’t make a small opening to allow for proper ventilation. Many smaller goldfish species can endure freezing, but most fish cannot, and koi are particularly vulnerable.

Final Tips to Prevent Ponds Freezing Over

  • If your pond only has an aerator, consider installing a deicer as a standby, which will benefit the pond fish.
  • Using multiple methods to prevent your pond from freezing can prove to be more beneficial.
  • If you see a frozen pond, you can secure your fish’s survival by making a hole in the frozen pond’s surface. Try putting a pan of hot water on the Ice to accomplish this. The heat will cause a hole in the Ice to melt, enabling gas exchange to take place.

Frequently Asked Questions:

What Can I Put in My Pond to Keep It from Freezing?

You have many options to choose from, i.e., floating devices, deicers, aerators, or pond heaters.

How Do I Keep My Koi Pond from Freezing?

Koi fish will need warmer water and fresh oxygen to survive, so you can use a combination of an aerator and a deicer to make sure the water is sufficient in both.

How Do You Keep a Small Pond from Freezing in The Winter?

A solar pond aerator can help keep it from freezing over without using too much electricity while circulating oxygen throughout the water. Alternatively, you could try other methods, such as covering your pond or using a deicer to keep a hole open.

How to Keep a Shallow Pond from Freezing?

A shallow pond freezer over much faster; hence, you might need to invest in a deicer and a pond heater to keep it warm. However, if your pond has no fish, you can let it freeze over without any fear of winter kill.

Try one of these easy ways to stop ice from forming on your pond next winter. Here are three of my favorite picks;

  1. CrystalClear PondAir Aerator Kits 
  2. Farm Innovators All Pond De-Icer 
  3. AlpineReach Koi Pond Netting

Jack Dempsey