Buy Large Calciworms 8-12mm (A381) Online at £3.19 from Reptile Centre

Large Calciworms 100 pack 8-12mm

SKU: A381

Large Calciworms 100 pack 8-12mm

SKU: A381
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Large Calciworms as Reptile Food

Many reptile and amphibian species enjoy our large calciworms as part of their main livefood diet.

They are easy to catch, contain a high calcium content and are highly nutritious. They are a great treat for your reptile or amphibian once or twice a week. The large calciworms are dispatched directly from the breeder and will be gut-loaded before packing to make sure that they are as nutritious as possible on arrival.

These calciworms are medium-sized, so they are perfect for reptiles of most sizes and adult  amphibians. In the store, we use the worms to feed all of our amphibians and geckoes as a treat.

You'll love them because:

  • We guarantee freshness or your money back.

  • They are farm-bred in ethical conditions.

  • They are pre-fed to ensure your reptile is getting a healthy and nutritious meal.

  • Delivered straight to your door in good time.

Packaging

The large calciworms arrive in a ventilated plastic tub. Small air holes along the sides provide airflow while keeping the worms safely contained.

In warmer months, the outer cardboard box may have extra perforations for cooling. In colder months, we may include a plain white heat pack to help maintain a suitable temperature during transit.

Feeding Guide

If you want to keep the calciworms as nutritious as possible, we recommend feeding them a healthy diet right up until they're used.

  • Offer fresh leafy greens, carrots, squash, or sweet potatoes; these provide hydration and essential nutrients.

  • You can also use specialist insect foods or gut-loading diets to boost their nutritional value for your reptile.

  • Remove any uneaten food daily to keep the enclosure clean and prevent mould or decay.

Well-fed worms make for excellent food and are far more beneficial, helping support your reptile’s health and digestion. For more information on their diet, please consult our livefood care sheet. If you’re looking for other types of reptile food, we also stock frozen, animal-specific, vegetation, and supplement options.

Animal Suitability

We recommend calciworms for the following animal types:

  • Tree Frogs

  • Juvenile Bearded Dragons

  • Leopard Geckos

  • Pacman Frogs

  • Crested Geckos 

Care Instructions

Keep calciworms at room temperature, away from direct sunlight or draughts. Add fresh food at regular intervals to keep them healthy and active.

Avoid overcrowding by providing size-appropriate housing with plenty of hiding spots.

Looking after your live food properly helps ensure your lizard or other pet gets the best nutrition possible.

Livefood Freshness Guarantee

We know how important it is to have fresh, reliable live food delivered on time. That’s why we ship live food five days a week using fast, trusted couriers. Most orders are packed on the same day they're dispatched and sent straight from the breeder, so they arrive in the best condition possible.

However, delivery can take a day or two, and sometimes things don’t go perfectly in transit. For your peace of mind, we have implemented the Livefood Freshness Guarantee! If your livefood doesn’t arrive in the best condition, or there is an issue with the size or quality, get in touch with our team and we’ll resolve it for you.

Delivery Information

We believe in being upfront about our delivery costs.

Delivery cost is calculated at the checkout and is dependent upon your basket contents and postcode.

We group products together so you get a reduced price.

When you checkout the total delivery price is shown.

Orders over £99 qualify for FREE delivery.

Dispatch Information

Orders are dispatched Monday to Friday excluding bank holidays.

Orders placed before 12pm will be dispatched that day

Orders placed after 12pm are not guaranteed to be dispatched that day.

Frozen food will not be dispatched on a Friday unless Saturday delivery is specified.

Dispatch emails & tracking information are sent throughout the day.

Who Will Deliver My Order?

Depending on the weight/ size of your order and your postcode, you will be presented with appropriate delivery options at the checkout.

Royal Mail

Royal Mail 24 - 1st class service that aims to deliver within 1 day of dispatch (not guaranteed).

Royal Mail 24 Tracked - 1st class service that aims to deliver within 1 day of dispatch (not guaranteed).

APC

Mainland UK - next-day courier with pre-12pm or pre-4pm delivery services (excluding some Scottish postal codes).

Saturday - aims to delivery before 12pm Saturday to mainland UK if the order is placed before 12pm Friday(excluding some Scottish postal codes).

DX

Mainland UK - next day courier with pre-1pm or pre-6pm delivery services (excludes some Scottish postal codes).

Saturday - delivers Saturday to mainland UK if order placed before 12pm Friday (excluding some Scottish postal codes).

Kings/ Tuffnell's

Some heavy items may need to be moved from your selected delivery service to a palletised delivery service with a delivery time of 1-2 working days.

Offshore/ Remote UK Delivery:

Orders via Royal Mail are unaffected. Orders that need to be delivered via a courier may (but not always) incur additional delivery charges if you live in one of the following post codes; AB30-56, IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-50, ZE, IM, BT & TR21-25.

Please place your order as normal and we will contact you before dispatching your order if necessary.

Offshore Non-UK Delivery:

We are not currently accepting orders from outside of the UK.

Gift Cards:

Gift cards are conveniently delivered free via email to the purchaser's inbox.

Frequently Asked Questions

What are calciworms and why are they so popular for reptiles?

Calciworms are the soft-bodied larvae of the black soldier fly, rich in calcium and ideal for a varied diet. These feeder insects are fed exceptionally, sold live, and dispatched directly to serve straight to your reptile. Extremely popular in British reptile keeping, they support healthy bone growth in many creatures.

How do I store calciworms after they arrive?

Keep calciworms in a ventilated tub at room temperature, away from sunlight and cold spots. Offer bug grub or leafy greens to keep them healthy. Calciworms live longer and stay nutritious in mild, stable conditions so avoid refrigeration.

Are calciworms or mealworms better for my reptile?

Both calciworms and mealworms provide good protein and fat for reptiles, but calciworms are often preferred because they are lower in fat and easier to digest. Many reptiles enjoy both, so offering a variety is helpful to keep your pet interested and well-nourished. We have a variety of livefood ready for your pet to enjoy! 

Do calciworms turn into black soldier flies quickly?

Calciworms live for a few weeks before they pupate into black soldier adults. The flies can be good for a snack and provide a bit of a fun challenge for your reptile, but proper care during the soft-bodied larvae stage helps maintain their nutritional value.

Do calciworms carry disease?

Calciworms are safely fed to many reptile and amphibian species and generally don’t carry disease when sourced from reputable breeders and suppliers like Reptile Centre. With proper care and hygiene, the risk is low. However, like all live food, they can pose a risk if kept in poor conditions, so care is especially important for certain animals.

Why choose your large calciworms over others on the market?

Our live large calciworms are of good quality, freshly packed, gut-loaded, and part of a trusted range used daily in our own Reptile Centre.