Top Tips on Feeding your pond fish through the winter.
- ByrkleyAquatics
- Feb 25
- 3 min read
Updated: Mar 1
Feeding pond fish correctly through winter is essential for koi and goldfish health in UK Garden ponds. Knowing when to stop feeding, which food to use, and how water temperature affects digestion can prevent common winter fish health problems.
Updated for Winter 2026 UK Pond Conditions.
Should you feed pond fish in winter?
Generally no. It will depend a bit however on the weather. The weather in the UK however is changeable, but your fish will most likely stop feeding from about end of October till around end of February. As temperatures begin to fall, many pond keepers switch to specially formulated winter pond fish food designed for colder water digestion.
At what temperature should you stop feeding pond fish?
As pond water temperatures begin to fall in autumn, your fish’s metabolism slows significantly. Pond fish such as koi and goldfish rely on water temperature to digest food properly, so feeding at the wrong time can lead to serious health problems. Once water temperatures drop below 10–12°C, switch to an easily digestible winter or wheatgerm food, and when temperatures fall below 8°C, feeding should stop altogether as fish enter a semi-dormant state and can no longer process food safely.
Using a highly digestible wheatgerm-based food helps prevent undigested food sitting in the fish’s gut during colder weather.
At what temperature should you stop feeding pond fish?
Monitoring water temperature with a pond thermometer removes guesswork and helps prevent overfeeding during sudden cold snaps.
If temperatures are consistently falling below 12°C, it’s best to transition to winter feeding products designed for cold-water digestion.
Water Temperature | Feeding Advice |
Above 17°C | Summer food |
12–17°C | |
8–12°C | Winter wheatgerm food |
Below 8°C | Stop feeding |
Accurately monitoring water temperature is the safest way to avoid overfeeding during winter months.
What is the best winter food for pond fish?
As the water temperature drops you need to change your food to one that is better suited to the cooler water. Fish struggle to digest foods at lower water temperatures, so it is important to find one that has the right composition to be easily digested at the lower temperatures.
Generally regular Summer foods can be fed down to water temperatures of around 17C. Spring and Autumn type foods can be used down to around 12C but winter specific foods can be fed longer down to temperatures of 8C. This helps the fish to obtain the right nutrients and body weight to help then stay fit and healthy through the cold winter months when they stop feeding completely.
When should I start feeding my fish again in the Spring?
The key here is to keep an eye on the water temperature, and the behaviour of your fish. Again you should start to feed using a temperature suitable food. Starting with a Winter food at the coldest temperature and gradually changing to a Spring food as the water temperature improves. If you are choosing good quality foods like JBL or Hikari you will find feeding temperatures on the packets. For further help and advice just pop us an email.
You can read more about seasonal pond preparation in our guide to winter pond maintenance.
Preparing your pond before temperatures drop makes winter fish care much easier. You can view our full range of winter pond care products here.
We sell various foods, from various manufacturers. Just be aware to check that you are getting the best food for your money. Always check the nutritional value, and the temperature that it is safe to use. It is also a good idea to have a pond thermometer, so that you can keep an eye on the water temperature in your pond. Pond Food is currently only available in store.
🧊 Winter Pond Essentials Checklist
Expert Tip from Byrkley Aquatics:
Feeding pond fish below the correct temperature is one of the most common causes of winter fish stress and loss in UK ponds.
