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Dairy Cow Isopod, Porcellio Laevis


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A simple to care for, beginner isopod species with a uniquely dappled exoskeleton reminiscent of a dairy cow. Can be kept as pets, or used as clean-up-crew.

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Dairy cow isopods, Porcellio laevis ‘Dairy Cow’, are a staple species in the isopod-keeping hobby. They’re nicknamed “dairy cow” because their appearance is reminiscent of the black and white patterns seen on cows. They can grow to be fairly large for an isopod, reaching sizes up to 2cm or sometimes more. Ease of care is one of the major advantages of keeping dairy cow isopods. They’re highly adaptable and tolerate a wide range of conditions, though they generally prefer a temperature range of 65-80°F (18-27°C). Unlike some other isopod species, they can handle higher humidity levels, making them a great choice for different types of terrarium setups. These isopods are excellent decomposers, breaking down organic material like leaves, wood, and other plant matter in their environment. Like other isopods, they also offer benefits to a terrarium, helping to keep the enclosure nice and clean. Dairy cow isopods are prolific breeders, so once you get a colony started, you’ll likely have a sustainable population before long. They are usually not picky eaters and will consume a variety of foods, including fresh vegetables, decaying wood, and even fish food pellets for protein.

So, if you’re new to isopod keeping or looking for a species that’s easy to care for while still being engaging, dairy cow isopods are a top pick. Their hardiness, adaptability, and striking appearance make them a rewarding addition to any terrarium or bio-active setup.


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Our Next-Day Guaranteed service promises same-day packing and delivery before 1 pm the following day for all orders placed. For standard livestock delivery, we dispatch orders within 1-5 working days, and once dispatched, your order will arrive in less than 24 hours.

We pride ourselves on our attention to detail- it’s a priority that your critters are safe & snugly packed.

When you receive your order, open it up and locate the transport container your pet is inside. Gently ease out your pet into the home you’ve prepared for it.

Ordering pets online can be nerve-wracking, we get it. Our 7-Day live guarantee is our way to ease nerves over the purchasing process.

We’re confident in the quality husbandry, shipping, and packaging of our livestock. On the rare occasion an animal arrives in poor condition, we will provide credit for the cost of that animal. If all animals in the shipment arrive in poor condition, we will also provide credit for the postage.

We try to make it as easy as possible to help any unwell critters, and ensure you can get your money back. There are a couple of steps to go through before a refund can be issued.

If you’ve received an unwell animal in the mail:

1. If it is safe to do so, (your pet is not medically significant or harmful) please remove the animal from its transport container, ideally onto your hand. We ask this as invertebrates, particularly insects, are experts at ‘playing dead’.

2. To provide you with the best advice going forward and to confirm the condition of your pet, we kindly request a short video of the animal in question before your refund can be processed. This can be uploaded on our ‘live guarantee refunds form’, or you can email it straight to us.

3. We typically respond within 24 hours, but please allow 1-3 working days for a response. Once it’s confirmed that you are eligible for a refund, we’ll get process the credit to your account.

We’ll need this information to reach us within 7 days after you’ve received your pet. We cannot provide any live guarantee to animals that have been refused, returned, or not collected.