Organise by Feeder and Size, Not by Animal
Stock is shared even when appetites are not, so the list should be built the way the store shelf actually looks: by feeder type, then by size. Crickets in three sizes are three different products — the tub of large ones does nothing for the gecko who eats small. Roaches deserve a line of their own with a note on the colony rather than a count, since a breeding colony is a flow, not a stock: roughly how many adults, how many young ones coming through. Worms, larvae and any frozen items each get a line with a quantity and the date they arrived. One list, kept where the feeders live, beats a mental tally refreshed by opening every tub.
Count What a Week Actually Eats
A stock list only prevents empty tubs if it knows the burn rate. Work out, once, what each reptile eats in a typical week — most keepers already know this in their bones — and write the totals against the feeders they draw from. Three reptiles taking fifteen medium crickets each in a week means the tub of fifty is a one-week tub, whatever the label implies. With the weekly draw written down, a reorder point sets itself: order when the shelf holds about a week's worth, and the gap between ordering and delivery stops being a crisis. Recheck the sums whenever an animal's appetite shifts — a growing youngster doubles its draw quietly, and the stock list should notice before the tub does.
Supplements Deserve Dates, Not Just Shelf Space
Calcium and vitamin powders are the stock items most often kept far past their usefulness, because a pot looks identical in its first month and its fourteenth. Write the date you opened each pot on its lid, and add it to the list; powders live in a warm reptile room, get opened constantly, and lose their edge with age and air. The list should also show which animals each powder serves and how the rotation runs, so a pot running low is spotted in the count rather than at dusting time with feeders already in hand. When a pot is replaced, the old date leaves the list with it — one line in, one line out keeps the record truthful.
The Five-Minute Weekly Count
Once a week — feeding day for the largest animal works well — walk the shelf with the list and correct it against reality: count tubs, shake the worm pots, glance at the colony, check the powder levels. Five honest minutes. Stock lists fail by drifting, not by catastrophe; a list corrected weekly never drifts far enough to matter. Note anything ordered and anything running down unexpectedly fast in the same pass, because feeders disappearing faster than the feeding logs explain usually means a spill, a quiet die-off in the tub, or an animal being fed by two people.
Let the Feeding Logs Audit the Stock List
The two records guard each other. If the feeding logs across your reptiles say a hundred crickets were eaten and the shelf dropped by two hundred, something is wrong in a tub, not in the arithmetic — crickets die quietly in corners. If the shelf barely moves while the logs show full feeds, portions have crept. Keep the stock list alongside the feeding records it serves: in KinsLe, that list can sit in the Pet Passport records kept for the animals, one shared page that their individual histories all draw from.