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Betta fish tanks

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Betta fish tanks for sale on largest auction and classifieds sites

Home / Fish & Aquariums / Betta fish tanks refurbished & used for sale | For Sale UK
Betta fish tank gallon - fish,

Betta fish tank gallon - fish,

£21.39
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20l aquarium fish tank - aquarium, with

20l aquarium fish tank - aquarium, with

£29.59
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Aqua one betta trio glass - trio,

Aqua one betta trio glass - trio,

£131.99
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20l aquarium fish - fish, tank

20l aquarium fish - fish, tank

£29.59
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Compact betta fish - fish, tank

Compact betta fish - fish, tank

£22.99
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Aqua one haven - haven, tank

Aqua one haven - haven, tank

£29.99
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Pcs 1x8x10 5cm - 2,

Pcs 1x8x10 5cm - 2,

£9.60
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Betta fish tank - 1, gallon

Betta fish tank - 1, gallon

£22.49
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Aquarium fish tank with - aquarium,

Aquarium fish tank with - aquarium,

£26.49
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Aqua one pico fish - pico, tank

Aqua one pico fish - pico, tank

£29.99
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Pack betta fish tank - pack,

Pack betta fish tank - pack,

£20.95
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Aqua one betta sanctuary - one, |

Aqua one betta sanctuary - one, |

£69.99
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2pcs durable plastic betta - 2pcs,

2pcs durable plastic betta - 2pcs,

£19.68
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Large aquarium cave hide - aquarium,

Large aquarium cave hide - aquarium,

£37.99
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Mini betta fish tank - mini, 1.2

Mini betta fish tank - mini, 1.2

£24.69
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Aquarium glass fish - fish, tank

Aquarium glass fish - fish, tank

£49.99
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Aqua one betta quad - aqua,

Aqua one betta quad - aqua,

£262.99
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Complete nano betta - nano, fish

Complete nano betta - nano, fish

£24.49
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Complete betta fish - betta,

Complete betta fish - betta,

£24.99
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Aqua one bt10 - aqua,

Aqua one bt10 - aqua,

£74.99
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Betta fish tank gallon - betta,

Betta fish tank gallon - betta,

£24.99
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Fluval betta premium - fluval, fighter

Fluval betta premium - fluval, fighter

£99.99
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Count plastic fish tank - 2,

Count plastic fish tank - 2,

£12.76
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Simulated lotus leaves betta - simulated,

Simulated lotus leaves betta - simulated,

£2.65
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20l nano fish - fish, aquarium

20l nano fish - fish, aquarium

£35.99
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Aquarium fish tank with - fish,

Aquarium fish tank with - fish,

£24.49
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Betta fish tank gallon - betta,

Betta fish tank gallon - betta,

£26.49
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Complete betta fish - betta,

Complete betta fish - betta,

£23.99
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20l aquarium fish tank with - aquarium,

20l aquarium fish tank with - aquarium,

£29.69
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Fish tank decor shed - shed, cave

Fish tank decor shed - shed, cave

£15.51
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Aquarium fish tank ornament - fish,

Aquarium fish tank ornament - fish,

£19.99
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Glass fish tank easy - tank,

Glass fish tank easy - tank,

£42.29
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Small plastic betta tank with - small,

Small plastic betta tank with - small,

£18.68
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Ciano cube litre - cube,

Ciano cube litre - cube,

£55.97
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Nanbor betta habitat - nanbor,

Nanbor betta habitat - nanbor,

£15.95
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Aqua one betta oasis - aqua, complete

Aqua one betta oasis - aqua, complete

£60.99
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2gal betta tank starter kit - 1.2gal,

2gal betta tank starter kit - 1.2gal,

£22.69
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Desktops mini fish - fish, tank

Desktops mini fish - fish, tank

£10.22
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Fluval premium betta aquarium - premium,

Fluval premium betta aquarium - premium,

£119.99
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Aqua one betta - aqua,

Aqua one betta - aqua,

£74.90
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Aquarium floating betta - aquarium,

Aquarium floating betta - aquarium,

£1.99
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Betta choice acrylic - acrylic, cylinder

Betta choice acrylic - acrylic, cylinder

£87.97
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Betta breakthrough branch - breakthrough,

Betta breakthrough branch - breakthrough,

£21.85
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Aquarium fish tank kit - aquarium, 3

Aquarium fish tank kit - aquarium, 3

£49.86
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Aqua one betta - aqua, bt10

Aqua one betta - aqua, bt10

£72.99
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Betta choice lifespace view - lifespace, 30

Betta choice lifespace view - lifespace, 30

£79.01
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Betta shrimp goldfish starter - goldfish,

Betta shrimp goldfish starter - goldfish,

£34.99
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Aqua one betta oasis aquarium - aqua,

Aqua one betta oasis aquarium - aqua,

£52.99
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20l aquarium fish tank with - 20l,

20l aquarium fish tank with - 20l,

£33.99
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Small fish tank gallon - 1,

Small fish tank gallon - 1,

£22.49
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Fluval 20l betta - 20l, aquarium

Fluval 20l betta - 20l, aquarium

£99.99
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Betta fish tank gallon - betta,

Betta fish tank gallon - betta,

£22.49
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Aqua one betta tank - one, half

Aqua one betta tank - one, half

£89.99
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Count plastic fish - count, tank

Count plastic fish - count, tank

£15.76
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2pcs durable red plastic - plastic, betta

2pcs durable red plastic - plastic, betta

£19.79
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Small fish tank gallon - small, 1

Small fish tank gallon - small, 1

£22.49
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Black aqua one betta due - one, glass

Black aqua one betta due - one, glass

£99.99
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20l aquarium fish tank with - 20l,

20l aquarium fish tank with - 20l,

£29.99
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Craftsboys aquarium - craftsboys, 4.5l

Craftsboys aquarium - craftsboys, 4.5l

£35.58
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Aquarium décor thematic - aquarium,

Aquarium décor thematic - aquarium,

£10.38
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Betta shark mouth - mouth, with

Betta shark mouth - mouth, with

£11.49
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Aquarium cave hideout - cave, fish

Aquarium cave hideout - cave, fish

£20.84
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Shrimp breeding cave - shrimp, aquarium

Shrimp breeding cave - shrimp, aquarium

£1.91
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Complete gallon fish tank - complete, 1

Complete gallon fish tank - complete, 1

£22.49
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20l aquarium fish - tank, with

20l aquarium fish - tank, with

£33.99
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Complete nano betta - complete,

Complete nano betta - complete,

£24.69
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Plastic fish tank with - plastic,

Plastic fish tank with - plastic,

£5.77
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Betta fish floating hammock - hammock, /

Betta fish floating hammock - hammock, /

£4.99
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Zoo med betta plants - med,

Zoo med betta plants - med,

£4.58
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Betta choice lifespace view - choice,

Betta choice lifespace view - choice,

£109.99
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Betta robot space dog - betta,

Betta robot space dog - betta,

£17.99
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Betta frigate piece aquarium - betta, 2-piece

Betta frigate piece aquarium - betta, 2-piece

£49.46
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Pack nano aquarium fish - aquarium,

Pack nano aquarium fish - aquarium,

£21.16
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Betta choice lifespace view - betta,

Betta choice lifespace view - betta,

£63.00
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Small fish tank gallon - small,

Small fish tank gallon - small,

£22.69
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Shrimp breeding cave aquarium - cave,

Shrimp breeding cave aquarium - cave,

£2.89
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2pcs clear viewing betta - 2pcs,

2pcs clear viewing betta - 2pcs,

£9.47
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Betta resting cherub - cherub, aquarium

Betta resting cherub - cherub, aquarium

£12.19
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Betta air action clam medium - air,

Betta air action clam medium - air,

£10.90
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Betta red mini car - red,

Betta red mini car - red,

£12.99
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Betta open mouth shark - open,

Betta open mouth shark - open,

£12.75
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Superfish aquarium fish - aquarium,

Superfish aquarium fish - aquarium,

£4.49
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2pcs fish tank decoration - tank,

2pcs fish tank decoration - tank,

£5.62
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Zoo med betta - oval, shape

Zoo med betta - oval, shape

£20.00
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Toddmomy rimless acrylic - toddmomy,

Toddmomy rimless acrylic - toddmomy,

£20.05
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Zoo med floating betta aquatic - med,

Zoo med floating betta aquatic - med,

£12.10
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Gallon betta tank - gallon,

Gallon betta tank - gallon,

£22.49
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Pack silk aquarium plants - pack,

Pack silk aquarium plants - pack,

£13.57
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Aquarium betta mirror fish - betta,

Aquarium betta mirror fish - betta,

£4.05
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Betta large castle - betta,

Betta large castle - betta,

£21.96
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Fish tanks decorations betta - fish,

Fish tanks decorations betta - fish,

£13.70
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Betta stony cave - stony, aquarium

Betta stony cave - stony, aquarium

£13.99
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20l aquarium fish tank with - 20l,

20l aquarium fish tank with - 20l,

£29.99
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Betta air action yellow - action,

Betta air action yellow - action,

£10.30
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Aquarium cave fish tank tunnel - aquarium,

Aquarium cave fish tank tunnel - aquarium,

£37.99
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Aquarium cave corner tunnel - aquarium,

Aquarium cave corner tunnel - aquarium,

£22.95
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📊96 listings · from £1.91 · avg £34.76
⚠️ These listings were last updated more than 14 days ago. Search for fresh listings

Browse 96 betta fish tanks listings currently in our index. Prices range from £1.91 to £262.99, with an average of £34.76. 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 | large marine fish tanks | aquarium glass | cylinder fish tank | coffee table fish tank | clearseal tank | 3 foot fish tank | 2 foot fish 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 £1.91, while premium listings can reach £262.99 — giving you a wide budget spread to work with. The average price of £34.76 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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