For Sale UK

Betta fish tanks

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Betta fish tanks for sale on largest auction and classifieds sites

Home / Fish & Aquariums / Betta fish tanks for sale – 96 used, around £22 | For Sale UK
Aqua one betta trio - aqua, glass

Aqua one betta trio - aqua, glass

£131.99
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Betta fish tank - fish,

Betta fish tank - fish,

£31.99
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Fluval betta premium aquarium - betta,

Fluval betta premium aquarium - betta,

£99.99
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Aquarium fish tank - fish,

Aquarium fish tank - fish,

£23.49
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Compact betta fish tank - betta,

Compact betta fish tank - betta,

£22.99
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Aqua one betta - aqua, quad

Aqua one betta - aqua, quad

£262.99
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Compact betta fish - compact,

Compact betta fish - compact,

£22.32
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White betta fish hammock set - white,

White betta fish hammock set - white,

£11.99
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Secure and stylish betta fish - secure,

Secure and stylish betta fish - secure,

£23.99
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Fluval 20l betta aquarium fish - fluval,

Fluval 20l betta aquarium fish - fluval,

£99.99
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Mini desktop aquarium fish - mini,

Mini desktop aquarium fish - mini,

£21.95
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2pcs betta small - fish, tanks

2pcs betta small - fish, tanks

£20.29
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Small fish tank gallon - 1.2,

Small fish tank gallon - 1.2,

£24.69
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Aquarium fish tank for betta - aquarium,

Aquarium fish tank for betta - aquarium,

£31.99
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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£19.99
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Acrylic betta fish tank - betta,

Acrylic betta fish tank - betta,

£40.99
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Nano glass aquarium - 5.5l,

Nano glass aquarium - 5.5l,

£41.99
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Desktop aquarium fish - fish, tank

Desktop aquarium fish - fish, tank

£17.55
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Lightweight and unique - lightweight,

Lightweight and unique - lightweight,

£20.99
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Simulated lotus leaves betta - lotus,

Simulated lotus leaves betta - lotus,

£2.59
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Shell betta resting spawning - betta,

Shell betta resting spawning - betta,

£5.87
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Mini fish tank stackable - tank, led

Mini fish tank stackable - tank, led

£9.66
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Fluval betta premium - betta,

Fluval betta premium - betta,

£99.99
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Ciano cube litre aquarium - ciano,

Ciano cube litre aquarium - ciano,

£55.97
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Aqua one betta quad glass - betta,

Aqua one betta quad glass - betta,

£249.99
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Compact betta fish - compact, tank

Compact betta fish - compact, tank

£24.69
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Black aqua one betta due - aqua,

Black aqua one betta due - aqua,

£99.99
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Stackable fish tank - stackable,

Stackable fish tank - stackable,

£9.93
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Betta fish tank - fish,

Betta fish tank - fish,

£31.99
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Betta haven aquarium - 5l,

Betta haven aquarium - 5l,

£51.99
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Aqua one betta sanctuary - betta, |

Aqua one betta sanctuary - betta, |

£69.99
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Aqua one betta oasis - betta,

Aqua one betta oasis - betta,

£60.99
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Complete betta fish - complete,

Complete betta fish - complete,

£23.99
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Betta fish tank with led - betta,

Betta fish tank with led - betta,

£15.08
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Fish tank with filter led - with,

Fish tank with filter led - with,

£49.75
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Betta choice lifespace view - betta,

Betta choice lifespace view - betta,

£75.06
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Gallon small fish - gallon,

Gallon small fish - gallon,

£18.99
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Transparent betta fish tank - betta,

Transparent betta fish tank - betta,

£5.89
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Aqua one betta sanctuary - aqua,

Aqua one betta sanctuary - aqua,

£69.95
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Zoo med betta oval - zoo,

Zoo med betta oval - zoo,

£20.00
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Detachable betta fish - detachable,

Detachable betta fish - detachable,

£10.12
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Artificial simulated lotus - artificial,

Artificial simulated lotus - artificial,

£2.49
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Simulated lotus leaves - lotus,

Simulated lotus leaves - lotus,

£2.65
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2pcs betta small - betta,

2pcs betta small - betta,

£20.19
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Betta choice acrylic - betta,

Betta choice acrylic - betta,

£83.57
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Aquarium floating betta - aquarium,

Aquarium floating betta - aquarium,

£1.99
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Aqua one betta tank bt10 - betta,

Aqua one betta tank bt10 - betta,

£72.99
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Aquarium starter kit 5l - aquarium,

Aquarium starter kit 5l - aquarium,

£37.52
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Craftsboys aquarium - craftsboys, 4.5l

Craftsboys aquarium - craftsboys, 4.5l

£35.59
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Aquarium shrimp breeding cave - shrimp,

Aquarium shrimp breeding cave - shrimp,

£2.04
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Artificial aquarium decor - artificial,

Artificial aquarium decor - artificial,

£2.99
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Dual chamber betta - chamber, fish

Dual chamber betta - chamber, fish

£13.99
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Aqua one bt10 betta aquarium - aqua,

Aqua one bt10 betta aquarium - aqua,

£74.99
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Betta shark mouth - mouth, air

Betta shark mouth - mouth, air

£10.92
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Betta fish aquarium - fish,

Betta fish aquarium - fish,

£3.50
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2pcs desk display - 2pcs,

2pcs desk display - 2pcs,

£9.23
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Desktops mini fish - fish, tank

Desktops mini fish - fish, tank

£10.63
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Large aquarium cave hide for - aquarium,

Large aquarium cave hide for - aquarium,

£37.99
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Compact betta fish tank with - compact,

Compact betta fish tank with - compact,

£25.48
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Aquarium 13l glass - glass, tank

Aquarium 13l glass - glass, tank

£66.99
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Fish safe resin aquarium - fish-safe,

Fish safe resin aquarium - fish-safe,

£17.99
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2pcs betta small - betta, fish

2pcs betta small - betta, fish

£20.15
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Acrylic betta fish - betta, 4.5l

Acrylic betta fish - betta, 4.5l

£37.52
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Betta dark cave - betta,

Betta dark cave - betta,

£19.95
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Bettapod floating betta - bettapod,

Bettapod floating betta - bettapod,

£13.95
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Betta stony cave aquarium fish - cave,

Betta stony cave aquarium fish - cave,

£13.29
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Smart betta dedicated - , fish

Smart betta dedicated - , fish

£48.99
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Small aquarium starter kit - small,

Small aquarium starter kit - small,

£17.95
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Shrimp breeding cave aquarium - shrimp,

Shrimp breeding cave aquarium - shrimp,

£1.99
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Glass terrarium with grow - with,

Glass terrarium with grow - with,

£29.99
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Simulated lotus leaves betta - simulated,

Simulated lotus leaves betta - simulated,

£2.79
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Betta choice lifespace view - choice,

Betta choice lifespace view - choice,

£59.85
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Gallon fish tank - gallon, built-in

Gallon fish tank - gallon, built-in

£24.33
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Shrimp breeding cave aquarium - breeding,

Shrimp breeding cave aquarium - breeding,

£1.99
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Complete betta fish starter - betta,

Complete betta fish starter - betta,

£23.99
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Aqua one betta - aqua,

Aqua one betta - aqua,

£89.99
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Aquarium fish tank - fish, 1.2gal

Aquarium fish tank - fish, 1.2gal

£25.99
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Desktop aquarium fish tank pet - tank,

Desktop aquarium fish tank pet - tank,

£21.95
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Betta fish tanks - fish,

Betta fish tanks - fish,

£5.10
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Desktop mini aquarium fish - ‌desktop,

Desktop mini aquarium fish - ‌desktop,

£17.55
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Underwater hobbit castle - hobbit,

Underwater hobbit castle - hobbit,

£16.99
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Desktop aquarium fish tank - aquarium,

Desktop aquarium fish tank - aquarium,

£17.95
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5pcs aquarium floating - 5pcs,

5pcs aquarium floating - 5pcs,

£9.48
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2pcs clear viewing betta fish - 2pcs,

2pcs clear viewing betta fish - 2pcs,

£9.47
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Betta open mouth - betta,

Betta open mouth - betta,

£12.11
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Aquarium fish tank - tank, 1.2gal

Aquarium fish tank - tank, 1.2gal

£23.99
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2pcs betta small fish tanks - betta,

2pcs betta small fish tanks - betta,

£18.94
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Extra large plane wreck - extra,

Extra large plane wreck - extra,

£45.40
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Small betta fish tank blue - small,

Small betta fish tank blue - small,

£14.00
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Betta fish tanks accessories - betta,

Betta fish tanks accessories - betta,

£5.22
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Aquarium decors fish tanks - aquarium,

Aquarium decors fish tanks - aquarium,

£16.68
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Betta fish mini aquarium - fish,

Betta fish mini aquarium - fish,

£6.47
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Fish tank accessories 2 pcs - 2,

Fish tank accessories 2 pcs - 2,

£12.11
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Aquarium fish tank - aquarium, light

Aquarium fish tank - aquarium, light

£31.89
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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£58.93
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Aqua one betta oasis 13l - aqua,

Aqua one betta oasis 13l - aqua,

£59.99
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📊96 listings · from £1.99 · avg £35.47

Browse 96 betta fish tanks listings currently in our index. Prices range from £1.99 to £262.99, with an average of £35.47. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about betta fish tanks →

Try this: custom fish tanks | aquarium equipment | freshwater tropical fish | large marine fish tanks | aquarium glass | clearseal aquarium tanks | cylinder fish tank | coffee table fish tank | clearseal tank | 4ft juwel fish tank

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Everything you need to know about betta fish tanks

Whether you are looking for a brand-new or second-hand betta fish tanks, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £1.99, while premium listings can reach £262.99 — giving you a wide budget spread to work with. The average price of £35.47 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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