Introducing the Blagdon Mayfly 250 Preformed Pond, a fantastic natural-looking plastic pond that's perfect for those who have a small to medium-sized garden and would like to bring it to life through the introduction of water and the biodiversity that this will foster.

By installing a preformed pond in your garden, you'll not only be adding visual appeal to the environment, but you'll also be creating a thriving ecosystem. This model comes with marginal shelves that allow for varying planting depths (which is particularly useful for plant species that prefer shallow water). What's more, any visiting wildlife will use these shelves as 'stepping stones' to help themselves get in and out of the water as they please.

Installation is a quick and easy process - all you have to do is dig a hole in the ground, place the pond inside and then backfill with soft sand or soil as you slowly add water. It's imperative to ensure that the pond remains 100% level at all times during the installation process.

Constructed from tough HDPE plastic, this preformed pond is designed to stand the test of time. If installed and maintained appropriately, it will remain a thriving aquatic habitat for many years to come.

This model is part of Blagdon's 'Mayfly' collection which is also available in the following sizes: 150500750 and 1000.  

For more in-depth information about preformed ponds, including plastic and fibreglass variations, check out our informative guide here: Everything You Need to Know About Preformed Ponds.

Key Features

  • Informally-Shaped Pond For a Natural Appearance
  • Made from 3-4mm Thick Tough Polyethylene (HDPE) Plastic
  • Resistant to UV Rays & Icy Weather Conditions
  • Integrated Marginal Shelves for Varying Depths of Planting
  • Deep Enough for Fish to Safely Hibernate During Winter
  • Easy to Install


Brand: Bermuda
Capacity: 250 Litres
Depth: 45cm (1ft 6in)
Larger Shelf Depth: 17cm ( 6.7in)
Length: 126cm (4ft 2in)
Material: Plastic
Smaller Shelf Depth: 29cm ( 11.4in)
Width: 84cm (2ft 9in)
Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £4.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote. 

Customer Reviews

Overall Rating 4.7 / 5 Based On 4 Reviews

Price 4 / 5
Quality 5 / 5
Delivery 5 / 5

Blandford pond

Arrived on time, easy to track. Just got to dig hole a bit bigger now to fit it.

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

A good pond with useful plant shelves.

I ordered this as a second pond to keep pond weed and snails in. In a short time it was colonised by newts and the birds like it. I actually paid extra for a quick delivery and astonished to find this item delivered four hours later! A decent firm that gives very good service and a credit to good old Britain.

Delivery 5 / 5
Quality 4 / 5
Price 4 / 5

Good starter pond

The pond arrived in good time and met all my expectations. The only problem I have is how the heck do you remove the sticky labels placed on the inside of the pond??? I would have thought that the best place was on the outside so that if there were a problem it would not matter as they would be below ground!! Other than that I am happy with the pond and it looks good in my mini wildlife garden.

We Replied:

Good Day Neil, Thank you for your fantastic review. To comment further about your feedback regarding the shipping labels, we did have a spate of lables which were peeling away from the pond and consequently we had to address this with our courier. It was concluded for us to continue distribution we must place the label on the inside of the pond which to date I have had no further issues. I would rest assured any residue from the label will come off easily with some white spirit or similar and ensure you swill this off to ensure suitability for fish!. Thank you once again and we will forward to future custom. Kind Regards David Coton / Partner

Delivery 4 / 5
Quality 5 / 5
Price 5 / 5

Blagdon Mayfly 250 litre pond

The pond duly arrived on the revised scheduled date and was exactly as pictured on your website. (4* only was as it was not in stock and after the 5 - 7 days wait for you to get it in stock had passed by a few days I had to phone to find out where it was. Given that I had paid about £30 some 25 years ago for the leaking pond that it was replacing, the quality and £74.99 price and free delivery was acceptable but the full price would have been a shade OTT.

Review This Product
Questions and Answers (3)
Shirley Asked:

How many fish can you have in the Mayfly 250 and 500?

We Replied:

Dear Shirley Thank you for your question. This is entirely dependent to what type of fish you want to keep. We would say that the 250 is not big enough for koi and the 500 could only accommodate 3-5 small koi who will need to be re-homed when they get bigger. If you were to keep Goldfish or Sarasa comets, the 250 could house around 10 small fish and the 500 around 20. Should you wish to contact us further or to place an order, please call us on 0121 355 7701. Thank you for using our online Q&A system. Kind regards Dan Everton

Monday 16th, May, 2016
Brian Asked:

What material is the pond made from and what is the thickness of the material?

We Replied:

Dear Brian Thank you for your question. This is made of plastic and is around 2mm thick. Should you wish to contact us further or to place an order, please call us on 0121 355 7701. Thank you for using our online Q&A system. Kind regards Dan Everton

Monday 06th, February, 2017
Mrs Densham Asked:

How big is the pond?

We Replied:

Dear Mrs Densham Thank you for your question. The pond's dimensions are: 126cm (4ft 1½ins) x 84cm (2ft 9ins) x 45cm (1ft 5¾ins) The capacity is: 250 litres (55 gallons) Should you wish to contact us further or to place an order, please call us on 0121 355 7701. Thank you for using our online Q&A system. Kind regards Dan Everton

Friday 10th, July, 2020

Have a question for this product? Go ahead and ask us! We try to reply within a few hours but it may take longer on some questions.

Ask us a Question

People Viewing This Product Also Viewed

Related Categories You May Like