The short list for a kuhli loach after a move
Update every record that still carries your old address: your aquatic vet or fish shop account, any aquarium maintenance service, recurring food and supply deliveries, and the contact sheet a sitter or neighbour would use in an emergency. A kuhli loach hides under wood and leaf litter all day, so nobody notices a stale address on its file until the moment someone actually needs it — a missed delivery, a sitter calling an old number, a shop unable to reach you about an order.
Record the new home's water, not just its address
A kuhli loach spends its life pressed against the substrate, burrowing into soft sand and sifting the bottom layer of the tank, and that bottom layer is exactly where differences in a new water supply settle. Test the new home's tap water for pH and hardness and write the results into your loach's notes alongside the readings from the old house. Kuhlis come from soft, acidic forest streams, so a new supply that runs noticeably harder or more alkaline is worth knowing about before the first big water change, not after the group goes quiet and stops emerging at dusk.
Update the headcount while you can actually count them
Moving a tank is the one occasion you can count kuhli loaches accurately, because in a settled aquarium they vanish into the decor for weeks. While the tank is drained down, note how many loaches you have, their approximate sizes, and which markings you recognise, and update your stocking record with the real number. That corrected count matters on paper: it is what a vet, a sitter, or a future owner will rely on, and a group recorded as four when it is really seven leads to wrong feeding amounts and a sitter who never realises two loaches are missing.
Refresh the emergency and sitter paperwork
Rewrite the tank's emergency sheet with your new address, your new nearest neighbour or key holder, and the route to the new home for anyone coming to help. Note on that sheet that kuhli loaches are nocturnal and hide by day, so a sitter who sees none at noon has not lost them — they should check after lights-out with a dim torch and confirm movement among the leaf litter. Add the new home's power details too: which sockets the filter and heater run on, and where the extension lead lives, so help arriving in the dark is not unplugging the filter to charge a phone.
Bring shop, vet and delivery accounts up to date
Tell your fish shop and any aquatic vet the new address and phone number, and check that frozen food deliveries — the bloodworm and sinking foods kuhlis are fed after dark — are pointed at the new house, since a frozen delivery thawing on a stranger's doorstep is a total loss. If a maintenance company services the tank, its contract and visit notes need the new address and any access details like gate codes or parking. Do this in the first week, while the move paperwork is already on the table, rather than trusting you will remember which accounts still hold the old details.
Keeping the updated address, the new tap water readings, the corrected headcount and the refreshed sitter sheet in one place is what KinsLe's Pet Passport is built for, holding a kuhli loach's records together as a single portable packet.