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Swell UK discount codes, offers, vouchers, promos and deals

  1. Swell Control Blanketweed
    Swell Control Blanketweed - 6 Pack - BOGOF
    Rating:
    94 % of 100
    104 Add Your Review
    From £11.71 Regular Price £21.98 Save £10.27
    In stock
  2. Swell Control Sludge
    Swell Control Sludge - 6 Pack - BOGOF
    Rating:
    95 % of 100
    190 Add Your Review
    From £11.71 Regular Price £21.98 Save £10.27
    In stock
  3. Swell Control Green Water
    Swell Control Green Water - 6 Pack - BOGOF
    Rating:
    95 % of 100
    79 Add Your Review
    From £11.71 Regular Price £21.98 Save £10.27
    In stock
  4. Swell 13 Watt PLS UV Bulb - BOGOF (fits Fish Mate and Bioforce 12000 Filters - older model)
    Swell 13 Watt PLS UV Bulb - BOGOF (fits Fish Mate and Bioforce 12000 Filters - older model)
    Rating:
    97 % of 100
    26 Add Your Review
    From £12.67 Regular Price £29.98 Save £17.31
    In stock
  5. Swell Pond Barley Straw Bale - BOGOF
    Swell Pond Barley Straw Bale - BOGOF
    Rating:
    95 % of 100
    141 Add Your Review
    From £5.54 Regular Price £22.98 Save £17.44
    In stock
  6. Swell 16 Watt UV Bulb
    Swell 16 Watt UV Bulb - BOGOF
    Rating:
    95 % of 100
    21 Add Your Review
    From £10.79 Regular Price £25.98 Save £15.19
    In stock
  7. Swell 30 Watt UV Bulb
    Swell 30 Watt UV Bulb - BOGOF
    Rating:
    96 % of 100
    31 Add Your Review
    From £14.62 Regular Price £37.98 Save £23.36
    In stock
  8. Swell 18 Watt PLL UV Bulb
    Swell 18 Watt PLL UV Bulb - BOGOF
    Rating:
    97 % of 100
    56 Add Your Review
    From £12.59 Regular Price £26.14 Save £13.55
    In stock
  9. Swell 24 Watt PLL UV Bulb
    Swell 24 Watt PLL UV Bulb - BOGOF
    Rating:
    98 % of 100
    50 Add Your Review
    From £16.19 Regular Price £49.98 Save £33.79
    In stock
  10. Swell 11 Watt PLS UV Bulb
    Swell 11 Watt PLS UV Bulb - BOGOF
    Rating:
    97 % of 100
    68 Add Your Review
    From £12.59 Regular Price £31.98 Save £19.39
    In stock
  11. Swell 25 Watt UV Bulb
    Swell 25 Watt UV Bulb - BOGOF
    Rating:
    97 % of 100
    64 Add Your Review
    From £12.67 Regular Price £39.16 Save £26.49
    In stock
  12. Swell 55 Watt UV Bulb
    Swell 55 Watt UV Bulb - BOGOF
    Rating:
    97 % of 100
    88 Add Your Review
    From £18.52 Regular Price £45.98 Save £27.46
    In stock
  1. Fluval Siena 332 110cm Aquarium Set - 332L
    Fluval Siena 332 110cm Aquarium Set - 332L
    From £1,198.99 Regular Price £1,498.99 Save £300.00
    In stock
  2. Fluval Shaker 345L Aquarium & Slate Grey Cabinet - 105cm
    Fluval Shaker 345L Aquarium & Slate Grey Cabinet - 105cm
    From £1,048.99 Regular Price £1,310.99 Save £262.00
    In stock
  3. Fluval Shaker 345L Aquarium & Hampshire Oak Cabinet - 105cm
    Fluval Shaker 345L Aquarium & Hampshire Oak Cabinet - 105cm
    From £1,048.99 Regular Price £1,310.99 Save £262.00
    In stock
  4. Fluval Siena 272 90cm Aquarium Set - 272L
    Fluval Siena 272 90cm Aquarium Set - 272L
    From £899.09 Regular Price £1,248.99 Save £349.90
    In stock
  5. Swell Marine Tank Media Bundle
    Swell Marine Tank Media Bundle
    From £31.49 Regular Price £52.49 Save £21.00
    In stock
  6. Swell Tropical Fish Food Bundle
    Swell Tropical Fish Food Bundle
    From £31.49 Regular Price £52.49 Save £21.00
    In stock
  7. Swell Jumbo Filter Bundle
    Swell Jumbo Filter Bundle
    From £28.60 Regular Price £51.95 Save £23.35
    Out of stock
  8. Swell Tropical Fish Tank Bundles
    Swell Tropical Fish Tank Bundles
    From £23.84 Regular Price £29.99 Save £6.15
    Out of stock
  9. Swell African Cichlid Starter Bundle
    Swell African Cichlid Starter Bundle
    From £22.49 Regular Price £37.49 Save £15.00
    In stock
  10. Swell Coldwater Fish Tank Bundle
    Swell Coldwater Fish Tank Bundle
    From £20.69 Regular Price £31.21 Save £10.52
    In stock
  11. Swell Tropical Fish Treats Bundle
    Swell Tropical Fish Treats Bundle
    From £19.79 Regular Price £32.99 Save £13.20
    Out of stock
  12. Swell 55 Watt UV Bulb
    Swell 55 Watt UV Bulb - BOGOF
    Rating:
    97 % of 100
    88 Add Your Review
    From £18.52 Regular Price £45.98 Save £27.46
    In stock
  1. Swell 6 Watt UV Bulb
    Swell 6 Watt UV Bulb - BOGOF
    Rating:
    100 % of 100
    3 Add Your Review
    From £7.70 Regular Price £15.98 Save £8.28
    In stock
  2. TMC Gamma Red Plankton Blister Pack
    TMC Gamma Red Plankton Blister Pack
    From £2.77 Regular Price £4.00 Save £1.23
    In stock
  3. TMC Gamma Fine Chopped Mussel Blister Pack
    TMC Gamma Fine Chopped Mussel Blister Pack
    From £2.31 Regular Price £2.99 Save £0.68
    In stock
  4. TMC Gamma Concentrated Mini Bloodworm Blister Pack
    TMC Gamma Concentrated Mini Bloodworm Blister Pack
    From £2.31 Regular Price £2.99 Save £0.68
    In stock
  5. TMC Gamma Brineshrimp Blister Pack
    TMC Gamma Brineshrimp Blister Pack
    From £2.31 Regular Price £2.99 Save £0.68
    In stock
  6. TMC Gamma Chopped Prawn Blister Pack
    TMC Gamma Chopped Prawn Blister Pack
    From £2.58 Regular Price £3.49 Save £0.91
    In stock
  7. TMC Gamma Copepod + Garlic Blister Pack
    TMC Gamma Copepod + Garlic Blister Pack
    From £2.58 Regular Price £3.49 Save £0.91
    In stock
  8. TMC Gamma Mysis Shrimp + Garlic Blister Pack
    TMC Gamma Mysis Shrimp + Garlic Blister Pack
    From £2.31 Regular Price £2.99 Save £0.68
    In stock
  9. TMC Gamma Discus Diet Blister Pack
    TMC Gamma Discus Diet Blister Pack
    From £2.58 Regular Price £3.49 Save £0.91
    In stock
  10. TMC Gamma Spirulina Brineshrimp Blister Pack
    TMC Gamma Spirulina Brineshrimp Blister Pack
    From £2.31 Regular Price £2.99 Save £0.68
    In stock
  11. TMC Gamma Daphnia Blister Pack
    TMC Gamma Daphnia Blister Pack
    From £1.84 Regular Price £2.48 Save £0.64
    In stock
  12. TMC Gamma Marine Cuisine Blister Pack
    TMC Gamma Marine Cuisine Blister Pack
    From £2.58 Regular Price £3.49 Save £0.91
    In stock

Now £999.99 | Was £2,079.99

Aquarium Systems L'Aquarium 370

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Now £119.99 | Was £142.99

Swell Pond Vacuum Cleaner

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Now £49.99 | Was £90.42

Swell 40cm Tropical LED Aquarium Kit 19L

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Now £109.99 | Was £164.99

Swell Multi Pump Premium 8500

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Now £69.99 | Was £111.68

60cm Tropical LED Aquarium Kit

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Now £3.90 | Was £6.99

Swell Silver Sand 2kg

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Now £13.99 | Was £20.67

Tetra Pond Sticks 7l

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Now £69.99 | Was £100.99

Fluval AquaSky LED 2.0 12w

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Now £69.99 | Was £89.99

Swell Pond Skimmer 3000

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Now £10.99 | Was £16.29

Seachem Prime 250ml + 30% EXTRA FREE

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Now £699.99 | Was £1,536.99

Aquarium Systems L'Aquarium 250

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Now £29.99 | Now £45.49

Fluval Plant and Shrimp Stratum 8kg

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Swell UK discount codes and coupons

Swell UK offers an incredible range of ways to save money on pond and aquarium essentials like fish tanks, pond pumps, fish food and much more. Sometimes we give out a single Swell UK discount code or Swell UK promo code on our website offering an amazing discount. However, the best way to access our voucher codes and Swell UK coupon codes is by signing up to our email list, where you will receive weekly emails containing hand-picked deals, huge savings and discount prices as well as occasional Swell UK promo codes. (See Terms & Conditions)

Swell UK delivery discount code

Another way to get a great discount on top Swell UK products, like fish food or water treatments, is to buy in bulk. If you spend over £49 on a single order, you will qualify for free delivery on most products (excluding some specialist products and palletised delivery). The great thing about our free delivery offer is that it is a fantastic deal delivering instant savings without the need for a Swell UK discount code or coupon. In fact, all you need to do to get your discount price is add the items to your basket and check out normally, we'll do the rest. No Swell UK coupon code or voucher code needed.

Swell UK Sales and Clearance

Swell UK regularly has sales across our entire site where you can snag a fabulous deal. To ensure you know about these deals before anyone else, you can sign up to our email list, where we'll ensure you get regular updates to beat the rush. You can also save while you shop online by looking out for clearance deals, where you can get older stock at reduced prices without Swell UK coupons or voucher codes.