Feed the thermometer, not the calendar
Pond fish are cold-blooded, and their digestion runs at the speed of the water around them. The same handful of pellets a koi or goldfish clears eagerly in summer can sit in the gut, and then in the pond, when the water cools. Winter feeding is therefore a staged wind-down driven by temperature and by what the fish are actually doing. Fish cruising up to meet you on a mild afternoon are telling you they can handle a small meal. Fish holding still in the deepest water are telling you the season for feeding has ended, whatever the month says.
The autumn change: lighter food, smaller meals
Begin the adjustment while the fish are still active but the water is clearly cooling. Switch from growth or colour foods to a wheatgerm-based pond food, which is formulated to pass through a slow digestive system more easily than protein-rich summer rations. Cut the amount at the same time: offer only what the fish finish within a few minutes, once a day at most, and skim out anything left floating rather than letting it sink and decay. Feed in the warmest part of the day, when the fish are most likely to be moving and digesting, and skip feeding on cold, grey days when nobody comes up, even if yesterday they did.
The full stop, and why it matters
Once the water stays properly cold and the fish have settled into their quiet winter posture near the bottom, stop feeding entirely. This is the step owners find hardest, because the routine feels like care, but food eaten by a near-dormant fish may not digest properly, and food refused simply rots, loading the pond with waste precisely when the filter bacteria are at their slowest. The fish are built for this: they live off reserves accumulated through the feeding season, which is why generous, good-quality feeding in the warm months is the real winter preparation. Keep the usual winter care going instead: a hole in any ice for gas exchange, filtration or aeration as your setup requires, and no disturbing the fish with nets or sudden changes.
Restarting in spring without overdoing it
When the water warms and the fish resume patrolling and searching the shallows, restart with tiny amounts of the same wheatgerm food, once a day on active days, and let their enthusiasm set the pace over the following weeks. Resist the urge to make up for winter; a sudden return to full summer rations overwhelms both their digestion and a filter colony that is still waking up. Test the water as feeding resumes, because the first ammonia bumps of the year usually trace back to food, not fish. Only move back to higher-protein food when the fish are consistently active and the water is reliably warm.
One plan for everyone who feeds the pond
Pond feeding goes wrong when several people feed on their own judgement, each adding a handful on a mild day. Writing the stages down, with the temperature at which each change happens, turns winter feeding into a shared rule. In KinsLe, Care Teams lets you set those seasonal feeding duties for the pond's helpers, and each completed feed is marked with a timestamp, so the fish get exactly one measured meal and the family can see it was already done.