Koi Dealer Inventory Management: Stock Tracking, Quarantine Records, and Arrival Logs
How koi dealers can manage fish inventory with stock tracking systems, quarantine records, arrival and departure logs, and customer documentation.
Koi dealers face inventory management challenges unique to live animal retail. Fish cannot be barcoded and shelved. They change in appearance as they grow. They require ongoing care costs whether sold or not. And a disease event in a holding pond can wipe out weeks of inventory investment. Systematic records are what separate profitable koi dealers from ones who cannot explain where their margin went.
Arrival Logs
Every batch of fish arriving from a farm or auction should be documented: the source, the arrival date, the number of fish by variety and size grade, the purchase price per fish or per batch, and the initial health observation on arrival. Note the water temperature at origin versus your holding system to flag temperature acclimation risk. Weigh or measure a sample of fish in each lot to establish baseline size data.
Quarantine Records
Incoming fish should enter a quarantine system separate from your display or selling ponds for 3 to 4 weeks minimum. Document: the quarantine pond or tank the fish entered, the salt concentration maintained, daily health observations, any treatments applied, and the date of clearance into the main stock. Fish that do not pass quarantine should not enter the main stock. Mixing an unsound fish into a display pond is an easy way to trigger a disease event that affects your entire inventory.
Stock Tracking
Maintain a current count of fish by variety, size category, and pond location. Update it when fish sell, when fish are moved, and when mortality occurs. A live count weekly or biweekly forces accountability. For premium fish, assign individual records with photographs for identification. A named Kohaku or Showa with good lineage documentation is worth substantially more than an unnamed fish of similar quality.
Departure and Sales Logs
Document every sale with the buyer's contact information, the fish sold, the price, the date, and the method of transport. If you provide a health guarantee, document the terms. Sales logs are necessary for both financial tracking and for answering customer questions about fish they purchased from you months or years later.