Properly prepared koi quarantine tank with water testing equipment and aeration setup for the critical first 48 hours of fish acclimation
Setting up a quarantine tank before koi arrival ensures optimal water conditions.

The First 48 Hours of Koi Quarantine: Critical Actions

By KoiQuanta Editorial Team|

More koi die in the first 48–72 hours of quarantine than at any other stage. The fish are maximally stressed, potentially carrying pathogens suppressed by the transit conditions, and entering a new environment that isn't yet calibrated to their needs.

What you do in those first two days either sets the quarantine up for success or compounds the damage that transit already did.

Here's the hour-by-hour reality of what a proper arrival day looks like - drawn from years of receiving shipments from Japan, some that went perfectly and some that taught me painful, expensive lessons.

TL;DR

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