Why a kuhli loach food change happens at night
A kuhli loach accepts new food safest when the change follows its nocturnal routine: familiar sinking food first, with the new food mixed in, offered as the lights go down. During the day this slender, banded loach wedges itself under leaf litter, driftwood, and rock edges, so a new food scattered at noon may be eaten entirely by tankmates before a single kuhli emerges. An evening blend placed deliberately near known hiding places gives the loaches first access while the food is fresh.
Blend gradually across a week or so of evening feedings. Begin with a small share of the new sinking pellet or wafer crumbled alongside the old, then increase the share as you confirm pieces near the shelters disappear overnight.
Getting the new food down to a bottom feeder
Delivery matters more than flavour in a kuhli loach transition. Use a feeding tube, long tweezers, or a turkey baster to set the mixed food on the substrate beside the loaches' favourite cover instead of sprinkling it at the surface. Faster midwater fish will intercept anything that drifts, and kuhlis rarely compete upward. A few pieces tucked at the edge of a coconut hut or under a broad leaf let a shy loach taste the new food without leaving shelter completely.
Choose a new food that softens and stays intact on the bottom rather than dissolving into a cloud. Kuhli loaches graze and mouth at food over time, working around a piece with their whisker-like barbels, so a pellet that holds together for a while suits their slow, thorough style far better than a powder that fouls the sand.
Checking that shy loaches actually ate
Confirming intake is the tricky part of transitioning a kuhli loach, because an empty spot at dawn could mean the food was eaten by snails or other bottom feeders. Photograph or note exactly how many pieces you placed at each shelter, and compare in the morning. Watch briefly with a dim red light or after lights-out using a low torch from the side; kuhlis that are investigating, looping over the blend, and mouthing pieces are accepting it even if they eat slowly.
Keep a simple tally per hiding place across the blend stages. If the pieces near one shelter vanish while those near another remain, the group using that shelter may need the food crushed smaller or placed a fraction closer to cover, not a faster overall switch.
When a kuhli loach refuses the new food
Pause the kuhli loach transition at the last accepted ratio if pieces sit untouched for two nights running or the loaches emerge and pass over the new food to hunt for scraps elsewhere. Try a different format before concluding they dislike the taste: a softer gel food, a finer crumble, or the new food rubbed against a piece of the old wafer can carry the familiar smell. Loaches rely heavily on scent through their barbels, and presentation often unlocks what flavour alone does not.
Seek advice from an aquatic veterinarian if a kuhli loach stops emerging at night, looks noticeably thinner along the body, breathes rapidly, or shows redness around the mouth and barbels, because those signs suggest illness or water trouble rather than pickiness. Logging the evening feeding spot, the blend ratio, and which shelters cleared their food in KinsLe through Care Teams means the next person on feeding duty repeats the after-dark routine exactly and timestamps the completed step.