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Fall Pond Fish Care

Drs. Foster & Smith Educational Staff
Fall & Winter Feeding Tips 
Winterizing in Fall 
Cold Weather Pond Care 
Put your pond to rest for the winter

Proper pond care in autumn helps prepare and condition your pond for the coming winter. Make over-wintering ornamental fish ponds a worry-free process with the following guide.

Maintain a healthy pond environment A substantial water change, up to 50%, removes contaminants and helps maintain improved water conditions throughout the winter. This seasonal water change is best done before water temperatures drop below 60°F. This is also a great time to remove organic materials accumulated on the bottom of your pond.

Change fish diet and feeding schedule As water temperatures dip into the 60°F range, cut back on feedings and mix staple diet with a wheat germ diet. Once water temperatures reach around 50°F, only offer wheat germ diet to your fish. Stop feeding when water temperature is at 40°F and do not feed again until water temperatures are consistently over 50°F in the spring.

Keep falling leaves out of your pond Secure a pond net over your pond. When leaves begin to pile up on the net, disconnect one side, remove debris, and repeat the process until all of the leaves have dropped from the trees. Remove any remaining leaves from your pond with a pond vacuum, net, or rake.

Plant maintenance Remove or bring tropical plants indoors. Once they are no longer green, trim hardy water lilies down to about an inch or two above the crown and move them to a deeper part of the pond. Trim marginal or bog plants or leave some for winter interest.

Equipment check Thoroughly clean your pond filters during fall. When water temperature drops below 40°F, shut down the water pump and remove the filter media to prevent damage due to freezing. Drain and store pump and filter media per manufacturer's recommendation.

Winter preparations It is crucial to provide proper gas exchange throughout the winter. If extended periods of freezing temperatures are common in your area, install a de-icer or an aerator. These devices maintain an opening and prevent ice from forming completely over the pond surface. If you have an aeration kit, place it near the surface to prevent colder water/air from mixing with warmer water near the bottom of the pond.


72°F 50% water change Divide and repot plants

60°F Mix staple diet and wheat germ Bring in or dispose tropical plants Install pond net when leaves begin to fall

50°F Change food to wheat germ

45°F Trim hardy water lilies and move to deeper water

40°F Stop feeding fish

Below 40°F Move or remove pump Install De-Icer

Install a pond net when leaves turn color.

Install a pond net when leaves turn color.

Switch to a wheat germ diet.

Cut back on feedings and switch to a wheat germ diet.

Remove leaves from your pond with a pond vacuum.

Remove leaves from your pond with a pond vacuum.

Don't wait until winter to invest in a de-icer.

Don't wait until winter to invest in a de-icer.

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