How To Package Fish For Transit – The Packaging Doctor

How to Package Fish for Transport – The Packaging Doctor

By Carl Board • Monday 7th October 2013

The Surgery Is Now Open

Packaging Doctor

Hi Doctor,

I run an online pet store that specializes in fish and reptiles. I recently received a large order for Koi Carp and need some guidance on how to package them properly. I was looking at polythene bags, but with your wide range of options, I wasn't sure which one would be the best fit. They definitely need to be waterproof, but also filled with oxygen so the fish can survive the trip. What’s the best option for this?

Thank you! From, Amy

Hi Amy,

Another animal-related packaging question—maybe they should start calling me the “Packaging Vet”! You're absolutely right—polythene bags are the go-to solution for transporting fish. Think back to those old fairs where you could win a goldfish in a plastic bag. If it works, why fix it? Some customers prefer more custom solutions, like leak-proof boxes or specialized containers, but for a small distributor like you, standard products will probably work just fine.

From our selection, I’d recommend the medium-duty, open-top clear polythene bags. These offer excellent visibility, which is important for fish—they tend to be more comfortable when they can see their surroundings and enjoy natural light. Why do you think fish tanks are transparent? It's not just for show!

These bags are completely waterproof, and we’ve tested them thoroughly after your query to make sure they don’t leak. In terms of inflation, they’re 200 gauge (50 microns thick), which gives them enough strength to hold air without tearing. Plus, they’re open-ended, making it easy to insert an oxygen tube and secure the top with an elastic band or cable tie. Just make sure to tighten it as much as possible to prevent any water from escaping.

If the fish are going on a longer journey or if you want extra protection, consider upgrading to the heavy-duty polythene bags. These are 400 gauge (100 microns thick) and still offer some clarity, though not as much as the medium ones. They also come in larger sizes, up to 36 x 48 inches, which is perfect for bigger fish like Koi Carp.

Wishing your fish a safe and smooth journey! - The Packaging Doctor

Note: All the packaging problems our doctor receives are real queries from customers or non-customers.

If you have a packaging problem that needs diagnosing
get in touch on Twitter @kitepackaging
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Refrigerated Truck

Refrigerated truck

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Refrigerator car by walking part of the special purpose vehicle chassis, and heat insulation box body (generally consists of polyurethane materials, glass steel, color steel plate, stainless steel, etc.), refrigeration units, inside temperature recorder, etc. components, for the special requirements of the vehicle, such as meat hook car, installed with a meat hook, waist, the guide rail of aluminum alloy, ventilation slots and other optional.

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1, divided into pieces of "sandwich" plate bonding type, the domestic large refrigerated truck manufacturers are using this technology, the use of this technology to produce a high thermal insulation performance of refrigerated cars.

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2, divided into assembly of injection foaming type.

3, the whole skeleton injection foam type.

4, vacuum adsorption paste

CLW GROUP TRUCK Refrigerated truck Classification of refrigerating units:

Refrigerating unit is divided into non independent refrigeration unit and independent refrigeration unit. Domestic and imported units, etc.. General models are used in the external cooler, a mini refrigerator car with built-in refrigerator. For the lower temperature requirements of refrigerated vehicles, can be taken to the car body cold plate (equivalent to the function of the evaporator).

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Semi Trailer

According to the bearing capacity of the chassis classification: Micro refrigerated trucks, small refrigerated trucks, medium-sized refrigerated trucks, large refrigerated trucks

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Characteristic

The container of the sealed refrigerated truck needs to be strictly sealed to reduce the heat exchange with the outside, so as to ensure the lower temperature in the refrigerator.

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The refrigeration equipment is connected with the container and provides a steady stream of refrigeration to ensure that the temperature of the container is in the range of the goods permitted.

Portability is generally used in refrigerated trucks transport goods are not for a long time to save the items, although there are refrigeration equipment, still need to quickly reach the destination.

A container similar to a heat insulated refrigerated truck is made of a material with better heat insulation effect, and the heat exchange is reduced.

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1 refrigeration vehicle refrigeration unit

Refrigerated trucks refrigeration unit: for refrigerated container trucks to provide a steady stream of "cold" is an important equipment, generally installed in the container to the top of the front, air conditioning like appearance, but than the same volume of air conditioning has stronger refrigerating capacity.

Refrigeration unit is generally divided into two, independent type units and non independent type units. The difference lies in the independent unit completely by another unit to generate electricity for the maintenance work, non independent unit is completely through the work of the vehicle engine power to drive unit of the refrigeration work.

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Selection of refrigerating unit of refrigerated truck

According to the volume of refrigerated compartment and transport of goods to the requirements of the temperature, to choose a different power refrigeration unit.

2 refrigerated truck insulation body

The refrigeration unit of the refrigerated truck is used for temperature control, and the effect of the box body is used for maintaining the temperature. If the chiller is the provider of energy, the compartment is the storage of energy. In the three parts of the refrigerated truck, the refrigerating unit and the heat preservation box body are the most important, the removal of the chassis can be used as a small heat preservation, cold storage.

Selection of thermal insulation compartment

Body selection generally follow a few points: good thermal insulation performance, light weight, not easy to damage.

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