The Surgery Is Now Open

Hi Amy,

Another interesting packaging query—maybe people will start calling me the Packaging Veterinarian soon! You’re absolutely correct; polythene bags are indeed the best option for shipping fish. Think about those classic fairground games where you win a goldfish—simple solutions often work best! While some clients opt for more customized packaging options, especially for pets, for your scale of business, standard stock products should suffice just fine.

From our range, I’d strongly suggest using medium-duty, open-top clear polythene bags for your Koi Carp. These bags provide excellent clarity, which is crucial because fish tend to stay calmer when they can see their surroundings and enjoy natural light—why else would fish tanks be transparent? These bags are completely waterproof, and after reviewing your inquiry, we’ve confirmed through rigorous testing that they don’t leak under normal conditions. When it comes to inflation, these bags are 200 gauge (50 microns thick), making them durable enough to hold a full charge of oxygen without bursting. Plus, being open-ended allows you to insert the oxygen tube and seal the top securely with either an elastic band or cable tie. Just make sure to fasten the seal tightly to prevent any leaks.

In case the fish are traveling a long distance or if you believe they require additional protection, consider upgrading to a thicker bag. Our heavy-duty polythene bags remain somewhat transparent but are 400 gauge (100 microns thick) for added strength. They also come in larger dimensions, up to 36 x 48 inches, which is perfect for bigger fish like Koi Carp.

Wishing your fish a smooth journey! – The Packaging Doctor

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