Learning Centre - All Articles
Winter Water Chemistry: What Happens Under the Ice
Winter Water Chemistry: What Happens Under the Ice
When winter sets in and the pond freezes over, the surface seems calm, but what is below the ice is far from peaceful. The chemistry of the water below the ice is constantly changing, and it can have serious effects on fish health and the overall balance of the pond ecosystem. This can stress fish, reduce microbial activity, and influence nutrient cycles.
The Oxygen Problem
Proper aeration in the winter is vital for fish survival. When a pond f
…
18th Dec 2025
Common Fall and Winter Pond and Lake Care Questions
Common Fall and Winter Questions
As the season changes, many pond owners start to notice the shifts in water quality, fish behaviour, and overall pond health. Cooler temperatures, falling leaves, and changes in biological activity can all affect how your pond functions. Preparing your pond for winter is essential to protect aquatic life, maintain water clarity, and ensure a smooth transition into spring. Below are answers to some of the most frequently asked questions about fall and winter pond
…
6th Nov 2025
Can I Leave My Fountain in my Pond during winter?
Fountains beautify your pond and provide the benefits of aeration. However, in Canada, we do not get the pleasure of enjoying them year-round. To avoid any damage to the unit, fountains must be removed before the time water temperatures drop below freezing, or preferably before this point to make the removal process more comfortable for you!
Why is removal necessary?
As water freezes, the surface expands and encroaches on the fountain float to create pressure and cause breakage. Further
…
20th Sep 2024
How to Properly Store Pond and Water Treatments in the Winter
As winter rolls around you may be left with unused pond products from the summer months and wondering if you can use them next year. The answer is, YES! Pond Pro’s products have long shelf lives and can readily be tucked away for continued use the following season! We do urge you to ensure that products are stored properly, so we have outlined general storage guidelines for some of our most popular products below:
Bacteria:
Pond Pro’s line up of beneficial bacteria is highly effec
…
20th Sep 2024
The Ultimate Guide to Can-Air De-icing Airlines
How does it work?
Bubbles are distributed along the length of a weighted bubble airline using compressed air. As the bubbles rise, they form a bubble “curtain” of warmer water from the bottom of the pond towards the surface. Water temperature is the primary factor that is going to influence de-icing. The depth, size and shape of the water body will also factor into heat retention.
Pond Pro Canada has completed several in-house studies looking at the de-icing ability of our
…
20th Sep 2024