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Aquarium fish tanks

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Aquarium fish tanks for sale on largest auction and classifieds sites

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Diversa aquarium fish tank - diversa,

Diversa aquarium fish tank - diversa,

£279.99 · Buy It Now

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Swell aquarium 60cm tropical - swell,

Swell aquarium 60cm tropical - swell,

£94.99 · Buy It Now

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Swell small aquarium - swell, 60cm

Swell small aquarium - swell, 60cm

£81.99 · Buy It Now

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Swell small aquarium 25cm - swell,

Swell small aquarium 25cm - swell,

£52.99 · Buy It Now

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Swell led complete aquarium - swell,

Swell led complete aquarium - swell,

£94.99 · Buy It Now

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Led glass aquarium fish tank - glass,

Led glass aquarium fish tank - glass,

£49.95 · Buy It Now

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Pvc metric plumbing - metric, &

Pvc metric plumbing - metric, &

£67.89 · Buy It Now

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Finest filters compatible - finest,

Finest filters compatible - finest,

£4.49 · Buy It Now

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Swell glass aquarium - glass, 30cm

Swell glass aquarium - glass, 30cm

£30.99 · Buy It Now

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Diversa aquarium fish tank - aquarium,

Diversa aquarium fish tank - aquarium,

£235.99 · Buy It Now

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Ciano aqua classic aquarium - ciano, 20

Ciano aqua classic aquarium - ciano, 20

£39.45 · Buy It Now

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Brand new fish tank - **brand, new**

Brand new fish tank - **brand, new**

£125.49 · Buy It Now

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Fish tank aquarium optional - fish, &

Fish tank aquarium optional - fish, &

£179.99 · Buy It Now

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Full spectrum aquarium fish - spectrum,

Full spectrum aquarium fish - spectrum,

£34.90 · Buy It Now

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Aquarium fish tank - aquarium, external

Aquarium fish tank - aquarium, external

£99.99 · Buy It Now

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Fish tank aquarium - fish,

Fish tank aquarium - fish,

£139.99 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£6.59 · Buy It Now

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Allpondsolutions ultra clear - allpondsolutions,

Allpondsolutions ultra clear - allpondsolutions,

£39.99 · Buy It Now

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Internal aquarium fish tank - internal,

Internal aquarium fish tank - internal,

£16.99 · Buy It Now

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Aquael glass aquarium - aquael,

Aquael glass aquarium - aquael,

£65.99 · Buy It Now

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Small aquarium fish - aquarium, tank

Small aquarium fish - aquarium, tank

£29.95 · Buy It Now

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Fish tank aquarium cabinet - tank,

Fish tank aquarium cabinet - tank,

£599.99 · Buy It Now

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Plastic aquarium fish - plastic, tank

Plastic aquarium fish - plastic, tank

£8.99 · Buy It Now

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Mini desktop fish tank - mini,

Mini desktop fish tank - mini,

£7.99 · Buy It Now

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Small fish tank aquarium - small,

Small fish tank aquarium - small,

£19.95 · Buy It Now

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Fish tank used - fish,

Fish tank used - fish,

£26.70 · Buy It Now

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Aquarium fish tank sand - aquarium,

Aquarium fish tank sand - aquarium,

£72.99 · Buy It Now

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Large fish tank - large, &

Large fish tank - large, &

£237.95 · Buy It Now

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Compact betta fish tank - compact,

Compact betta fish tank - compact,

£19.99 · Buy It Now

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Hidom submersible tropical - hidom,

Hidom submersible tropical - hidom,

£13.95 · Buy It Now

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Aquael opti set - set, aquarium

Aquael opti set - set, aquarium

£549.99 · Buy It Now

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Co2 carbon dioxide - carbon, fire

Co2 carbon dioxide - carbon, fire

£65.00 · Buy It Now

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Fish tank set - tank,

Fish tank set - tank,

£20.99 · Buy It Now

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Aquarium fish tank pump - fish,

Aquarium fish tank pump - fish,

£7.99 · Buy It Now

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White aquarium sand natural - aquarium,

White aquarium sand natural - aquarium,

£24.83 · Buy It Now

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Hidom aquarium air - aquarium, fish

Hidom aquarium air - aquarium, fish

£25.95 · Buy It Now

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Fluval provac plug - fluval, aquarium

Fluval provac plug - fluval, aquarium

£49.99 · Buy It Now

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Column aquarium tower fish - column,

Column aquarium tower fish - column,

£598.30 · Buy It Now

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Egg crate for - egg, aquarium

Egg crate for - egg, aquarium

£3.99 · Buy It Now

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Aquarium lid riser - 6x,

Aquarium lid riser - 6x,

£8.96 · Buy It Now

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Aquarium fish tank tropical - aquarium,

Aquarium fish tank tropical - aquarium,

£17.99 · Buy It Now

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Brand new fish tank - **brand,

Brand new fish tank - **brand,

£135.89 · Buy It Now

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Display aqua one - ex,

Display aqua one - ex,

£699.99 · Buy It Now

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Aquarium fish tank - fish, submersible

Aquarium fish tank - fish, submersible

£11.99 · Buy It Now

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Swell small nano - swell, aquarium

Swell small nano - swell, aquarium

£43.99 · Buy It Now

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Brand new large - fish, tank

Brand new large - fish, tank

£177.45 · Buy It Now

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Medium sized fish tank 40cm - medium,

Medium sized fish tank 40cm - medium,

£38.00 · Buy It Now

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Aquarium fish tank gravel - aquarium,

Aquarium fish tank gravel - aquarium,

£64.99 · Buy It Now

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Air stone curtain bubble bar - stone,

Air stone curtain bubble bar - stone,

£14.99 · Buy It Now

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Aquarium fish tank with - fish,

Aquarium fish tank with - fish,

£22.99 · Buy It Now

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Aqua one aqualume glass - one,

Aqua one aqualume glass - one,

£99.99 · Buy It Now

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Hepo aquarium heater fish - hepo,

Hepo aquarium heater fish - hepo,

£10.99 · Buy It Now

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Small fish tank aquarium - tank,

Small fish tank aquarium - tank,

£19.95 · Buy It Now

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Large fish tank aquarium - fish,

Large fish tank aquarium - fish,

£179.95 · Buy It Now

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Aquarium fish tank - pump, clean

Aquarium fish tank - pump, clean

£2.80 · Buy It Now

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Betta fish tank - 1,

Betta fish tank - 1,

£22.49 · Buy It Now

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Air stone for aquarium fish - air,

Air stone for aquarium fish - air,

£2.49 · Buy It Now

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Fluval provac powered aquarium - fluval,

Fluval provac powered aquarium - fluval,

£49.50 · Buy It Now

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Aquarium plant root tabs fish - root,

Aquarium plant root tabs fish - root,

£3.95 · Buy It Now

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Aquarium fish tank - fish, bubble

Aquarium fish tank - fish, bubble

£4.29 · Buy It Now

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Easy live aquarium plants - 10,

Easy live aquarium plants - 10,

£8.88 · Buy It Now

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Small fish tank - small, aquarium

Small fish tank - small, aquarium

£19.97 · Buy It Now

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Aquarium fish tank background - fish,

Aquarium fish tank background - fish,

£8.65 · Buy It Now

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Smart fish tank aquarium - fish, kit

Smart fish tank aquarium - fish, kit

£29.99 · Buy It Now

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Aqua one haven betta - one, 5l

Aqua one haven betta - one, 5l

£29.99 · Buy It Now

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50mm round air stone for - 50mm,

50mm round air stone for - 50mm,

£34.99 · Buy It Now

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Aquarium fish net - fish,

Aquarium fish net - fish,

£0.99 · Buy It Now

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Aqua one cube square glass - cube, 40

Aqua one cube square glass - cube, 40

£76.99 · Buy It Now

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Off 18l 30l - 10%off, 7.4l/18l/30l/56l

Off 18l 30l - 10%off, 7.4l/18l/30l/56l

£34.99 · Buy It Now

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Undergravel filter kit - undergravel,

Undergravel filter kit - undergravel,

£11.99 · Buy It Now

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Interpet nano led complete - interpet,

Interpet nano led complete - interpet,

£54.99 · Buy It Now

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Hidom internal fish - hidom,

Hidom internal fish - hidom,

£15.45 · Buy It Now

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Fish tank set small - tank,

Fish tank set small - tank,

£22.59 · Buy It Now

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Hornwort for pond aquarium - hornwort,

Hornwort for pond aquarium - hornwort,

£18.99 · Buy It Now

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Small fish tank aquarium - fish,

Small fish tank aquarium - fish,

£29.99 · Buy It Now

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Fluval 20l betta - 20l, fish

Fluval 20l betta - 20l, fish

£99.99 · Buy It Now

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Marina lux led - lux, aquarium

Marina lux led - lux, aquarium

£57.95 · Buy It Now

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Desktop fish tank - 2.5l,

Desktop fish tank - 2.5l,

£8.19 · Buy It Now

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5pcs aquarium floating - 5pcs,

5pcs aquarium floating - 5pcs,

£2.99 · Buy It Now

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Aqua one betta quad glass - one,

Aqua one betta quad glass - one,

£199.99 · Buy It Now

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5pcs aquarium floating - aquarium,

5pcs aquarium floating - aquarium,

£3.99 · Buy It Now

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Desktop betta tank - betta, 1.2gal

Desktop betta tank - betta, 1.2gal

£23.99 · Buy It Now

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245l 120cm black - black, tropical

245l 120cm black - black, tropical

£429.99 · Buy It Now

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Brand new fish tank - **brand,

Brand new fish tank - **brand,

£174.00 · Buy It Now

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Mini aquarium transparent fish - transparent,

Mini aquarium transparent fish - transparent,

£9.99 · Buy It Now

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Ciano aqua aquarium with - ciano, 20

Ciano aqua aquarium with - ciano, 20

£51.91 · Buy It Now

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8pcs set fish - 8pcs/set,

8pcs set fish - 8pcs/set,

£8.49 · Buy It Now

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Allpondsolutions aquarium fish - allpondsolutions,

Allpondsolutions aquarium fish - allpondsolutions,

£11.99 · Buy It Now

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Portable plastic fish - fish, tank

Portable plastic fish - fish, tank

£8.68 · Buy It Now

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Aquarium cleaning brush - brush, set

Aquarium cleaning brush - brush, set

£4.90 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£18.75 · Buy It Now

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Aquarium cleaner kit vacuum - aquarium,

Aquarium cleaner kit vacuum - aquarium,

£1.97 · Buy It Now

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Aquarium sand fish - aquarium,

Aquarium sand fish - aquarium,

£29.99 · Buy It Now

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Aquarium 28l glass fish - aquarium,

Aquarium 28l glass fish - aquarium,

£49.99 · Buy It Now

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Fish tank complete kit - complete, &

Fish tank complete kit - complete, &

£219.95 · Buy It Now

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Brand new fish - **brand,

Brand new fish - **brand,

£179.99 · Buy It Now

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📊96 listings · from £0.99 · avg £80.83
⚠️ These listings were last updated more than 20 days ago. Search for fresh listings

Browse 96 aquarium fish tanks listings currently in our index. Prices range from £0.99 to £699.99, with an average of £80.83. 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 aquarium fish tanks →

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Everything you need to know about aquarium fish tanks

Whether you are looking for a brand-new or second-hand aquarium 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 £0.99, while premium listings can reach £699.99 — giving you a wide budget spread to work with. The average price of £80.83 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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