Feeding Pond Fish Through Winter 2026
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.
Should You Feed Pond Fish in Winter?
Generally, no. It depends on the weather, which is changeable in the UK, but your fish will most likely stop feeding from the end of October until around the end of February. As temperatures begin to fall, many pond keepers switch to specially formulated winter pond fish food designed for colder water digestion.
Temperature Guidelines for Feeding
As pond water temperatures begin to fall in autumn, your fish 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. Using a highly digestible wheatgerm-based food helps prevent undigested food sitting in the fish gut during colder weather. Monitoring water temperature with a pond thermometer removes guesswork and helps prevent overfeeding during sudden cold snaps.
| Water Temperature | Feeding Advice |
| Above 17°C | Summer food |
| 12–17°C | Spring/Autumn food |
| 8–12°C | Winter wheatgerm food |
| Below 8°C | Stop feeding |
Choosing the Best Winter Food
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. Generally, regular summer foods can be fed down to water temperatures of around 17°C. Spring and autumn type foods can be used down to around 12°C, but winter specific foods can be fed down to temperatures of 8°C. This helps the fish obtain the right nutrients and body weight to stay fit and healthy through the cold winter months when they stop feeding completely.
Starting in Spring
The key here is to keep an eye on the water temperature and the behaviour of your fish. You should start to feed using temperature-suitable food, beginning with a winter food at the coldest temperatures and gradually changing to a spring food as the water temperature improves. If you are choosing high-quality foods such as JBL or Hikari, you will find feeding temperatures on the packets. For further help and advice, just pop us an email.
Winter Pond Essentials Checklist
To ensure your pond is well-maintained during the colder months, we recommend having the following items ready: winter pond fish food, a pond thermometer, pond ice clear, pond netting, and beneficial cold-water bacteria.
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. Preparing your pond before temperatures drop makes winter fish care much easier. You can view our full range of winter pond care products on our website.
Please note that we sell various foods from different manufacturers. Always check the nutritional value and the temperature at which the food 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. For more information, you can read our guide to winter pond maintenance.