How to Ship Coral Frags in the UK: The Complete Guide
- Jun 19
- 5 min read
Quick Answer: How Do You Ship Coral Frags in the UK?
The best way to ship coral frags in the UK is to secure them in dedicated coral shipping containers, such as the Purbeck Polyps Coral Shipping Containers, rather than shipping them loose in bags. The frag should be mounted on a plug or tile, placed in a sealed container with saltwater, packed inside an insulated box, and sent using a next-day delivery service. This method minimises movement, reduces damage, and helps ensure corals arrive healthy and stress-free.
If you've ever sold, traded or gifted coral frags, you've probably wondered how to ship them safely through the UK postal system.
The good news is that thousands of coral frags are successfully shipped across the UK every year. The key is understanding how to package corals properly, minimise transit time and protect them from temperature fluctuations.
In this guide, we'll explain exactly how we ship coral frags at Purbeck Polyps, why our method works, and the supplies you'll need to achieve high survival rates when posting corals.
Can You Post Coral Frags in the UK?
Yes.
Live coral frags can be legally shipped within the UK provided they are packaged correctly and sent using a reliable next-day delivery service. Most experienced coral sellers use either Royal Mail Special Delivery or specialist overnight couriers to minimise the amount of time corals spend in transit.
The biggest risks during shipping are:
Temperature fluctuations
Physical damage
Corals becoming detached from plugs
Extended delivery delays
Water leakage
Fortunately, all of these risks can be dramatically reduced with the correct packaging.
The Best Way to Ship Small Coral Frags
After many years of reef keeping and coral trading, I've found that securely mounting frags inside dedicated coral shipping containers provides significantly better protection than simply bagging frags loose in water.
Our shipping process uses:
Secure coral shipping containers
Coral frag plugs or tiles
Insulated packaging
Heat packs during colder weather
Royal Mail Special Delivery next-day service
This approach keeps corals immobilised during transport, reducing damage caused by movement and impact.
Why Coral Shipping Containers Are Better Than Bags
Traditional fish bags work well for fish, but coral frags present different challenges.
Frag plugs can move around inside bags, damaging coral tissue or snapping delicate branches during transit.
Purpose-built coral shipping containers solve this problem by:
Securing the Frag
The coral remains mounted throughout transit, preventing excessive movement.
Reducing Physical Damage
The coral is isolated from impacts and vibration during handling.
Improving Presentation
Customers receive a neatly packaged frag that can be inspected immediately upon arrival.
Simplifying Packing
Containers are quicker to prepare and easier to pack consistently.
For most soft corals, zoanthids, palythoa and many LPS species, shipping containers provide an excellent balance of protection and convenience.
Choosing the Right Coral Shipping Container
Container size matters.
Smaller frags generally require less water volume and smaller containers, while larger colonies need additional space and stability.
At Purbeck Polyps we use specialist coral shipping containers designed specifically for standard frag plugs and tiles.
Popular options include:
60ml Coral Shipping Containers
Perfect for:
Zoanthids
Palythoa
Mushroom corals
Small leather coral frags
Small LPS frags
These provide enough water volume while keeping the frag secure.
90ml Larger Containers
Suitable for:
Branching corals
Larger soft coral frags
Mini colonies
Multi-head LPS corals
The goal is always to minimise movement while providing sufficient water volume.
Temperature Control Is Critical
Temperature swings are one of the biggest causes of shipping losses.
Corals thrive in stable reef temperatures around 24–26°C and can become stressed by rapid changes.
To maintain stability during transit:
In Winter
Use insulated boxes and quality 40 hour heat packs.
In Summer
Use insulation and consider cool packs during periods of extreme heat.
Year Round
Always avoid leaving parcels in courier depots over weekends whenever possible.
Many established UK coral sellers dispatch only Monday to Thursday for exactly this reason.
Why We Use Royal Mail Special Delivery
Fast delivery is essential for live coral shipments.
At Purbeck Polyps, coral orders are shipped using Royal Mail Special Delivery before 1pm for next-day delivery. Orders are packed in insulated packaging with secure coral transport containers and heat packs where required.
Benefits include:
Next-day delivery
Full tracking
Reduced transit time
Reliable nationwide coverage
Better survival rates
The less time a coral spends in a box, the better.
How to Pack Coral Frags Step by Step
Step 1: Mount the Coral Securely
Ensure the frag is firmly attached to a frag plug or frag tile before shipping. it normal takes 2-4 weeks depending on the species for the frag to start encrusting.
Step 2: Place Into a Shipping Container
Secure the plug or tile within the coral shipping container.
Step 3: Fill With Clean Saltwater
Use aquarium water with stable parameters.
Step 4: Seal and Check for Leaks
Double-check all lids before boxing.
Step 5: Pack Inside an Insulated Box
Use polystyrene or equivalent insulation. Make sure the container is securely surrounded by packing paper or similar to ensure it cant move in the box.
Step 6: Add Heat or Cool Packs
Adjust according to seasonal temperatures.
Step 7: Dispatch Using Next-Day Delivery
Book a delivery day with the recipient and avoid weekend delays.
Common Coral Shipping Mistakes
Avoid these common errors:
Using Containers That Are Too Large
More water is not always better. Excess movement can damage coral tissue.
Shipping Loose Frags
Detached frags are much more likely to suffer damage.
Sending Before Weekends
A delayed parcel can quickly become a dead coral.
Skipping Insulation
Temperature stability is often more important than water volume.
Using Cheap Packaging
The cost of proper packaging is far less than replacing lost corals and wasted shipping.
Coral Shipping Supplies You'll Need
If you're planning to sell, swap or trade coral frags regularly, investing in dedicated shipping supplies makes the process easier and more reliable.
Recommended essentials include:
Insulated boxes
Heat packs
Waterproof labels
Our Most Popular Shipping Supplies
If you'd like to use the same style of packaging we use for our own coral shipments, take a look at:
These products are ideal for hobbyists selling frags on forums, Facebook groups, eBay and reefing marketplaces.
Final Thoughts
Successfully shipping coral frags isn't complicated once you understand the fundamentals.
Focus on:
Secure mounting
Purpose-built shipping containers
Temperature stability
Insulated packaging
Reliable next-day delivery
By following these principles, you'll dramatically improve arrival rates and give your corals the best possible chance of arriving healthy and ready to thrive in their new reef aquarium.
Whether you're selling a few surplus frags or regularly shipping corals around the UK, using proper coral shipping supplies will save time, reduce losses and improve customer satisfaction.
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