Fry feeding is a paradox every fish breeder meets: tiny stomachs empty fast, so fry need feeding little and often — yet every extra grain they miss decays in a small volume of water and undoes them. The way through is to treat portion control, delivery, and cleanup as one system rather than three chores, so frequent meals stop meaning frequent pollution.
Portion by what disappears, not by the clock on the tin
The working measure for a fry feed is what the whole batch clears in about two minutes. Start smaller than instinct suggests — a pinch of powdered food that looks insufficient, a few drops of liquid fry food, a small puff of newly hatched brine shrimp — and watch. Fry with gently rounded bellies and food still being hunted at two minutes have had a correct meal; food drifting down in clouds past uninterested fry means the next portion shrinks. Different foods foul at different rates: live baby brine shrimp that survive uneaten do the least immediate damage, powdered foods coat surfaces and decay where they land, and liquid foods disperse through the whole volume, so they demand the smallest doses of all. Adjust one feed at a time as the batch grows; a portion right for week one is a snack by week three.
Deliver food to the fry, not to the tank
Where the food lands matters as much as how much. Fry gather predictably — at the surface film, along plant cover, in the calm corner away from the filter outflow — so deliver each feed directly over that gathering with a pipette, a feeding spoon, or a fingertip tapped at the surface. Food placed precisely is eaten; food broadcast across a rearing tank mostly feeds the bottom film. Turn off or baffle strong flow during feeding if fry are being swept away from the meal, and restore it straight after. Space the day's feeds across the day, including a last small feed before lights out for very young batches.
Clean up on the same rhythm as you feed
Assume some food escapes every feed and plan its removal rather than hoping the filter copes. Within an hour of a powdered or liquid feed, run narrow tubing along the bottom and lift the settled film, topping up with dechlorinated water matched for temperature; in a small rearing tank this doubles as the daily water change fry need anyway. Check the siphon bucket before discarding it, every time, because the fry you are feeding are the size the siphon takes, and pour it back if you spot swimmers. A sponge filter gives fry-safe water movement and hosts some of the micro-life fry graze between meals, but it is not a substitute for removing waste. Snails are sometimes added as a cleanup crew in rearing tanks, and a few can help with surplus, though they add their own waste and are optional, not essential.
Spot the two failure patterns early
Overfeeding announces itself as cloudy water, a sour smell when you lift the lid, fry gasping at the surface, and white fuzz growing on the bottom — respond with an immediate partial water change, a skipped feed to let the system clear, and permanently smaller portions, and test the water if the cloudiness persists. Underfeeding is quieter: fry that stay translucent and pin-thin, grow unevenly as the boldest monopolise each meal, or fade over days despite clean water need slightly larger or more frequent feeds, or food delivered in two spots so shy fry eat too. Healthy progress looks like steady, even growth across the batch and water that stays clear between changes. Because little-and-often feeding spans the whole day, recording each meal as a completed duty in KinsLe's Care Teams, timestamped as it is done, is what keeps three helpers' good intentions from becoming nine feeds.