If you enjoy a pond in your garden, you often wonder what happens to my fish when the pond is frozen over. Will my fish still get enough oxygen?
Small ponds need a total cover of transparent material, so that snow does not restrict the lighting conditions under water. On two sides, the pond must remain open so that oxygen can penetrate below the ice surface. These pages must not be cold, which means you have to keep tapping them if necessary.
But before you winterize your garden pond, there are a few more rules to follow.