Taking Care of your fish in the winter
Pond De-Icing & Winter Fish Care Made Simple
Why De-Icing Matters for Your Pond
When temperatures drop, your pond’s surface freezes, trapping harmful gases beneath the ice. Without oxygen exchange, fish can suffocate, and bacteria build up.
That’s why proper de-icing and aeration is essential for every Canadian pond and lake during winter.
How Pond De-Icing Works
✔ Breaks the Ice Layer – Not the Bank
A de-icer maintains an open water area to let oxygen circulate naturally.
✔ Safe for Fish, Docks & Water Systems
Each model is designed to protect aquatic life and prevent dock or boat damage.
✔ Smart Energy Efficiency
Choose from low-wattage models that work even in extreme cold temperatures without skyrocketing your hydro bill.
✔ Reliable Winter Performance
Designed to operate consistently throughout the season, keeping water open and your pond ecosystem protected.
Top-Selling De-Icing Systems in Canada
Protecting Fish During Winter
✔ Keep Oxygen Levels Stable
Even under ice, fish need oxygen exchange. Combine aeration and de-icing for best results.
✔ Don’t Overfeed in the Cold
During winter, fish metabolism slows. Reduce feeding when water dips below 10°C.
Top-Selling Fish Care Systems in Canada
Why Choose Pond Pro Canada
Need Help? Contact One of Our Team Members
Speak with our pond and de-icing experts for residential or commercial inquiries, Monday–Friday, 8:30 AM–4:30 PM.
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Our products are tested and used across Canada by professionals who understand your water systems.
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Frequently Asked Questions
How does a pond de-icer work?
How does a pond de-icer work?
De-icers play a crucial role in maintaining an ice-free area around your boat, dock, pier, or other in-water property by pushing warm bottom water to the surface. This not only protects your valuable assets but also supports aquatic life by creating open spaces for oxygen to enter the water.
Can I use a pond aerator in winter?
Can I use a pond aerator in winter?
Yes, using a pond aerator in winter is recommended, especially if your pond contains fish. Aeration helps prevent winterkill by maintaining essential gas exchange. By keeping an opening in the ice, the aerator allows toxic gases such as methane to escape and oxygen to enter the water, which is critical for fish survival during extended periods of ice cover.
How often should I feed my fish in the winter?
How often should I feed my fish in the winter?
As water temperatures drop, fish metabolism slows, so feeding should be adjusted accordingly. Above 10°C (50°F), continue feeding as usual. Between 10°C and 4°C (50–39°F), reduce feeding gradually. Once temperatures fall below 4°C (39°F), stop feeding entirely, as fish cannot properly digest food at these colder temperatures. When in doubt, use your fish’s behaviour as a guide. If they are sluggish and not coming to the surface, they are conserving energy; it’s best to let them rest until the spring.
How do I size a de-icer for my pond or lake?
How do I size a de-icer for my pond or lake?
Ready to Protect Your Pond This Winter?
Don’t let your pond freeze over — keep your fish healthy and your water system protected.
Shop trusted de-icers and aeration systems from Pond Pro Canada today.
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