UK Jellyfish - Medusa Reviews 96

TrustScore 4 out of 5

4.0

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Rated 5 out of 5 stars

Bought a deluxe tank and 2 lactoide jellies we are over the moon with them! Customer service was great got given all instructions on how to do everything and support was there when needed couldnt reco... See more

Rated 1 out of 5 stars

Jellyfish came in poor condition, probably due to inadequate packaging. Didn't survive more than a couple of a days. Refund refused without genuine reason. Sad when businesses are just in it for the m... See more

Company replied

Rated 5 out of 5 stars

Wow - what a brilliant company!! I wish I could more than 5 stars. I have genuinely never received such brilliant, friendly customer service. I am fairly new to keeping Jellyfish but Rory has been... See more

Rated 5 out of 5 stars

Highly recommended,I recently purchased two Jellyfish from him,they were despatched very quickly & arrived well packaged.On opening these you can see they've been well cared for & healthy.He is very... See more

Company details

  1. Pet shop

Written by the company

Pet Jellyfish For Sale Online. Buy Jellyfish Aquariums and Jellyfish food. Specialist breeders of high quality Jellyfish. Shipped worldwide.


Contact info

4.0

Great

TrustScore 4 out of 5

96 reviews

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Rated 5 out of 5 stars

Will buy again!

Bought a deluxe tank and 2 lactoide jellies we are over the moon with them! Customer service was great got given all instructions on how to do everything and support was there when needed couldnt recommend enough!

13 June 2025
Unprompted review
Rated 5 out of 5 stars

Moon Jellies!

Despite a few issues that arises through the fault of no one, customer service has been excellent. Very supporting to myself as a new jellyfish owner! Set up instructions easy to follow, and all queries answered well. Very helpful and happy with the service.

11 June 2025
Unprompted review
Rated 5 out of 5 stars

Very happy with moon jellies in Nano Aquarium C8

Bought the Jellyfish Nano Aquarium C8 with moon jellies included.

Aquarium arrived quickly, fairly easy to setup.

Received lots of useful guidance and videos from UK Jellyfish.

Once tank was ready got the jellyfish overnight by FedEx, packaged well.

Only had them four days so far but they seem healthy, they look great swimming about in the cylindrical tank, especially with the lighting.

Perhaps not cheap but as a newcomer to keeping jellyfish I felt it was worth it getting absolutely everything needed from one place, the support by email from Rob at UK Jellyfish was very helpful.

20 May 2025
Unprompted review
Rated 5 out of 5 stars

Moon Jellies

First time ordering from UKJellyfish, the jellies arrived well packaged and very healthy. They’ve been in my Kreisel for a few days and are eating and very active. Highly recommend this company for jellies.

9 May 2025
Unprompted review
Rated 1 out of 5 stars

Please do not buy from this company

Subject: Concerns Regarding Company Practices and Products

I would like to bring to your attention several critical observations regarding a specific company that may affect potential customers:

1. **Location Misrepresentation**: It has come to my attention that the company is not based in the UK, but rather in the Czech Republic. Consequently, both the food and equipment are sourced from there. Furthermore, the jellyfish shipment originates from the Czech Republic, raising concerns about the validity of their claims regarding the 'disease-free' status of their products.

2. **Pricing Concerns**: I have found identical tanks and equipment available at significantly lower prices, approximately one-fifth of what this company charges.

3. **Markup on Parts**: The company appears to resell components of other branded products at inflated prices. For example, nitrifying bacteria can be obtained at significantly lower prices from Sera-Marin, as well as distilled water and salt.

4. **False Advertising**: The company presents itself as a UK-based entity, complete with a UK domain name and description. However, based on my experience with two separate tank orders and jellyfish species, all items were shipped from the Czech Republic.

5. **Related Companies**: The company has a partner entity, "PetJellyfish.co.uk," which claims to operate independently. However, it seems that they either share the same manufacturers and shipping location or have created two companies to mitigate risk. Both sites also use identical images for their products.

6. **Inaccurate Information**: The claim that one can cycle a tank in 10 days is misleading. In reality, it takes approximately four weeks for the cycling process to adequately adapt for jellyfish. There is no unique bacteria that can reduce this time frame.

7. **Language Quality**: The company’s website contains numerous grammatical and spelling errors, suggesting that English may not be their primary language.

8. **Purchasing Recommendations**: Prospective buyers should proceed with caution. I recommend purchasing tanks, equipment, water, and salt from other sources, while considering acquiring jellyfish solely from this site if necessary. Personally, I have found high-quality items such as food, water, salt, pipettes, and cleaning supplies from Amazon at a fraction of the price.

For full transparency, I used a pseudonym when engaging with the company to avoid any potential bias in responses. The observations I have shared here reflect the standards of my order based on my experience to date. I feel compelled to provide this feedback as I have encountered issues with customer service and the actual nature of the company's operations. Other reviews corroborate similar concerns. I strongly urge potential customers to consider local sourcing alternatives.

26 March 2025
Unprompted review
Rated 5 out of 5 stars

great seller there!

The jellies were received less than 24 hours after shipment. Seller provided a lot of very helpful recommendations to guide us through the installation as well as how best to feed and care for them. Thank you so much!

19 March 2025
Unprompted review
Rated 1 out of 5 stars

Company based on Lies

Where to start…
-They are not based in the UK at all! Rather the Czech Republic. Not the food nor the equipment come from the UK. Jellyfish also ship from Czech- the fish’s ‘diseased-free’ claim is based on lies.
-All their equipment can be defective and faulty, I have found identical tank and equipment for 1/5 of the price elsewhere.
-They re-sell you parts of other branded products for much higher cost. The nitrifying bacteria, you can purchase at Sera-Marin for much cheaper + more product, same with distilled water and salt.
-They falsely advertise themselves as a UK company, even with a UK domain name and description, but do not believe this, everything, from my 2 separate tanks and both species of jellyfish have been sent from the Czech.
-They have a partner company “PetJellyfish.co.uk”. They claim to be separate but they are not. I have ordered from both places. They either have the exact same manufacturers and ship from the same place, or they opened up 2 companies to protect them in case one tanks. They also use identical images on both of their sites for their merchandise.
-They claim you can bacteria-cycle your tank in 10 days. This is FALSE. It takes around 4 weeks for the cycle to properly adapt for the jellyfish, there is no special bacteria that cuts it down from 4 weeks to merely 10 days.
-Many many grammatical and spelling errors on their site, indicating English is probably not even their first language.
-Buy at your own risk, my advice; purchase the tank, equipment and water, salt etc. from elsewhere, and only purchase the jellyfish from this site, nothing else. I have been simply using Amazon to purchase food, water, salt, pipettes, cleaning utensils from Amazon aquatic stores for a fraction of the price, and much higher quality.

- For clarification I have used a false name to cover any prejudice faced from their team. Everything I have written has been about the standards of my order have been completely correct as of the date I am writing this. There is absolutely no reason for my to ‘falsify’ a review unless I’ve actually received poor customer care from this otherwise unknown company. Additionally they have not addressed the fact that they Lie about being based in the UK when everything is shipped from Czechia, other reviews say the same thing. I Would source locally rather than this site.

31 January 2025
Unprompted review
UK Jellyfish - Medusa logo

Reply from UK Jellyfish - Medusa

Dear Jj,
We have carefully reviewed your feedback and are quite surprised, as we have no record of any order from you in our system. Your claims do not match any actual transactions or communications we've had with our customers.

We take great pride in the quality of our products and services, and it is unfortunate to see such misleading information being spread. If you have any genuine concerns or need assistance, we would be happy to help—however, we kindly ask that reviews be based on real experiences rather than false accusations.

We remain committed to providing top-tier jellyfish, aquariums, and accessories, and we always encourage potential customers to reach out with any questions before making a purchase.
Regards
Nina, customer service team

Rated 1 out of 5 stars

Terrible- Emails vaguely answered

Terrible- Emails vaguely answered. And unwilling to provide refunds. Avoid

14 February 2025
Unprompted review
UK Jellyfish - Medusa logo

Reply from UK Jellyfish - Medusa

Dear Pete,
We’re sorry to hear about your experience, but we are unable to find any details regarding your case. Please reach out to us directly or provide your order number here, and we will be happy to review what went wrong and work towards a solution.

We always strive to provide the best customer service, and we appreciate the opportunity to resolve any issues.
Regards
Nina, customer service team

Rated 1 out of 5 stars

Avoid at all costs!

Avoid at all costs, this company is nothing but a scam. Firstly they say they are UK jellyfish the biggest breeders in the UK blah blah blah however all their products come from the Czech Republic including the jellyfish.
I ordered this product to arrive at my old address before moving in December, the parcel went missing with the vendors carrier and after spending hours on the phone to UPS got nowhere. In credit to the vendor they arranged to send a replacement to my new address, however when this arrived it was missing items that were supposed to be in the 'all in one kit'. Contacted the vendor who said to buy the missing items myself and they will throw some food in as compensation. The items cost me roughly £30, when the tank was set up I contacted the vendor to send the jellyfish. I was given a date that was 8 days in the future and provided by the vendor I also ordered an extra jellyfish at a cost of £18. I took a day off work to make sure I was home to receive these animals, by 2PM I had not heard anything so contacted the vendor who said nothing had been shipped as they didn't have the capacity to fulfill the order and I would have to wait another week again before they could send them , I was furious after taking a days leave again at my own cost and asked for a refund. The vendor then said they would ship the jellyfish the following day to be delivered yesterday on the 23rd and to make sure someone was home to receive them, again I took another days leave to then be told by UPS in the afternoon that they couldn't deliver and it would be made the following day (today). I contacted the vendor to say that I am not happy and want a refund this purchase has been nothing but a headache from start to finish this was a Christmas gift that has just turned into a money pit and costing me valuable leave but didn't receive a response for days despite emailing more than once and calling their Whatsapp number, only when I raised it with Paypal did they respond. I wasn't able to take the delivery the following day as had to go to work and then received the parcel nearly 2 weeks later to which funnily enough the jellyfish were dead. Shop here at your peril I have wasted £350 dealing with a company that should be call Czech Republic Jellyfish.

22 January 2025
Unprompted review
UK Jellyfish - Medusa logo

Reply from UK Jellyfish - Medusa

Dear Alison,
We are sincerely sorry to hear that your experience with us did not meet your expectations. Our goal is always to provide the best possible customer service and ensure customer satisfaction. However, we would like to clarify a few points.

Firstly, we take great pride in being a leading provider of jellyfish and aquariums. While some of our operations are based in the Czech Republic, we serve customers across multiple countries, including the UK, with a focus on quality and responsible shipping.

Regarding your order, we understand how frustrating shipping delays can be, especially when they affect your plans. We always strive to work with reliable couriers, but unfortunately, once a package is handed over to the shipping provider, unforeseen delays can occur beyond our direct control. Despite this, we arranged a replacement for you, and we regret that there were missing items in your kit. Our offer to compensate for these items was made in good faith, as we aim to resolve issues in a fair manner.

We acknowledge that the rescheduling of your jellyfish delivery caused inconvenience. Our priority is always the well-being of the animals, and we would never ship live jellyfish unless we are confident they will arrive in optimal condition. If a delay occurs due to logistical or stock issues, we do our best to inform our customers as soon as possible.

We also regret that our response time did not meet your expectations. We strive to respond promptly, but during peak periods, there may be delays. Nevertheless, we always address customer concerns and take every complaint seriously.

Your feedback is valuable, and we will take it into account to improve our services further. If you would like to discuss this matter further, please feel free to reach out to us directly. We truly regret the inconvenience you faced and appreciate your understanding.
Regards
Nina, customer service team

Rated 5 out of 5 stars

Bio-orb; great birthday present

Ordered a bio-orb with glowing algae for my son's birthday. It was well packaged and arrived safe and sound shortly after. It's a brilliant present; he's loved the idea since we watched a program on bioluminescence on Discovery Channel and saw beaches with glowing shorelines. We set up the orb (poured the pouch into the orb and left on his desk away from the direct sunlight from the window, as per instructions) and he could hardly wait for it to get dark. Seeing the algae light up as he swirled the orb was like magic. Awesome present.

31 May 2023
Unprompted review
Rated 5 out of 5 stars

Would give 10 stars for UK Jellyfish if I could

What can I say. Rory from UK Jellyfish has been brilliant. I am quite a novice jellyfish owner but he has answered all of my questions and I’ve asked a lot!
If you are thinking of getting into jellyfish keeping and please really think about, I can’t recommend UK jellyfish highly enough. I would give 10 stars if I was able to.

26 January 2023
Unprompted review
Rated 5 out of 5 stars

Great Service

After getting our original jellyfish from the other "UK" company (based in the Czech Republic), Rory the owner was excellent in communicating and advising regarding resetting our tank. This was before we had even made a purchase. Once we purchased,Rory was always available for advice when required, resulting in a much better experience with our second go at keeping jellyfish. Would highly recommend. Thank you.

1 March 2022
Unprompted review
Rated 5 out of 5 stars

Highly recommend

Rory is so helpful and knowledgeable. He goes out of his way to check-in and provide advice. Delivery was fast and jellyfish arrived super healthy. I have dealt with another jellyfish company previously and the service just doesn't come close to UK Jellyfish.

13 July 2022
Unprompted review

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