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Fish tanks

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Fish tanks for sale on Ireland's largest auction and classifieds sites

Home / Fish & Aquarium / Fish tanks refurbished & used for sale | For Sale UK
Diversa aquarium fish - diversa,

Diversa aquarium fish - diversa,

£135.99 · Buy It Now

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Co2 carbon dioxide fire - co2,

Co2 carbon dioxide fire - co2,

£65.00 · Buy It Now

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Juwel rio 450l fish tank - 450l,

Juwel rio 450l fish tank - 450l,

£291.90 · Buy It Now

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Swell led complete aquarium - complete,

Swell led complete aquarium - complete,

£94.99 · Buy It Now

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Brand new fish tank - fish,

Brand new fish tank - fish,

£172.29 · 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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Diversa aquarium fish tank - diversa,

Diversa aquarium fish tank - diversa,

£235.99 · Buy It Now

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Aquael glass aquarium - glass, fish

Aquael glass aquarium - glass, fish

£65.99 · Buy It Now

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20l aquarium fish tank - 20l,

20l aquarium fish tank - 20l,

£31.99 · Buy It Now

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Hidom internal fish - internal, tank

Hidom internal fish - internal, tank

£9.45 · Buy It Now

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Swell small aquarium - swell,

Swell small aquarium - swell,

£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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Fluval flex led - 2.0,

Fluval flex led - 2.0,

£99.99 · Buy It Now

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Hidom submersible tropical - submersible,

Hidom submersible tropical - submersible,

£13.95 · Buy It Now

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2kg co2 fire extinguisher - co2, for

2kg co2 fire extinguisher - co2, for

£15.95 · Buy It Now

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Hepo aquarium heater fish tank - heater,

Hepo aquarium heater fish tank - heater,

£10.99 · Buy It Now

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Diversa aquarium with - with, /

Diversa aquarium with - with, /

£245.99 · Buy It Now

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Aquarium fish tank with - 5l,

Aquarium fish tank with - 5l,

£21.59 · Buy It Now

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Swell glass aquarium 30cm - glass,

Swell glass aquarium 30cm - glass,

£30.99 · Buy It Now

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Ciano aqua classic - classic, aquarium

Ciano aqua classic - classic, aquarium

£39.45 · Buy It Now

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New full spectrum 140cm - full, 60-140cm

New full spectrum 140cm - full, 60-140cm

£35.45 · Buy It Now

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Aqua one haven - 5l, tank

Aqua one haven - 5l, tank

£29.99 · 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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Internal aquarium fish tank - internal,

Internal aquarium fish tank - internal,

£18.99 · Buy It Now

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Submersible aquarium light - aquarium,

Submersible aquarium light - aquarium,

£16.99 · Buy It Now

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Compact betta fish tank kit - betta,

Compact betta fish tank kit - betta,

£22.99 · Buy It Now

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Small starter aquarium fish - small,

Small starter aquarium fish - small,

£54.99 · Buy It Now

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Aquael hexa 60l - tropical, fish

Aquael hexa 60l - tropical, fish

£149.99 · Buy It Now

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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£99.99 · Buy It Now

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Litre fish tank - 90, full

Litre fish tank - 90, full

£68.30 · Buy It Now

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Fluval 125l fish tank with - fish,

Fluval 125l fish tank with - fish,

£63.10 · Buy It Now

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Marine tropical aquarium - marine, or

Marine tropical aquarium - marine, or

£104.70 · Buy It Now

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Aquarium fish tank internal - aquarium,

Aquarium fish tank internal - aquarium,

£29.99 · Buy It Now

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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£7.25 · Buy It Now

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Juwel vio cube aquarium - juwel,

Juwel vio cube aquarium - juwel,

£239.99 · Buy It Now

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Brand new large fish - new,

Brand new large fish - new,

£187.90 · Buy It Now

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Allpondsolutions ultra clear - allpondsolutions,

Allpondsolutions ultra clear - allpondsolutions,

£39.99 · Buy It Now

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Fluval aquarium heater - fluval,

Fluval aquarium heater - fluval,

£26.99 · Buy It Now

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Extra large castle - large, xl

Extra large castle - large, xl

£79.99 · Buy It Now

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Desktop betta tank 2gal - betta,

Desktop betta tank 2gal - betta,

£23.99 · Buy It Now

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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£34.99 · Buy It Now

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Aquarium fish tank with - 5l,

Aquarium fish tank with - 5l,

£22.99 · Buy It Now

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Bcuk frozen bloodworm fish - bcuk,

Bcuk frozen bloodworm fish - bcuk,

£83.99 · Buy It Now

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Pond aquarium uv light - /,

Pond aquarium uv light - /,

£136.99 · Buy It Now

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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£12.99 · Buy It Now

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Pvc metric plumbing - pvc,

Pvc metric plumbing - pvc,

£67.89 · Buy It Now

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Ciano aqua aquarium with - aqua, 30

Ciano aqua aquarium with - aqua, 30

£60.77 · Buy It Now

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Fluval 20l betta aquarium - fluval,

Fluval 20l betta aquarium - fluval,

£99.99 · Buy It Now

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Diversa aquarium with stand - aquarium,

Diversa aquarium with stand - aquarium,

£185.99 · Buy It Now

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Aquarium fish tank - 5,

Aquarium fish tank - 5,

£18.75 · Buy It Now

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Fluval provac powered aquarium - fluval,

Fluval provac powered aquarium - fluval,

£49.49 · 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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White aquarium sand natural - aquarium,

White aquarium sand natural - aquarium,

£43.19 · Buy It Now

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Aquarium sand fish tank - aquarium,

Aquarium sand fish tank - aquarium,

£42.99 · Buy It Now

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Plastic aquarium fish tank - plastic,

Plastic aquarium fish tank - plastic,

£8.99 · Buy It Now

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Swell magnetic algae cleaner - magnetic,

Swell magnetic algae cleaner - magnetic,

£9.99 · Buy It Now

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Finest filters compatible air - finest,

Finest filters compatible air - finest,

£4.49 · Buy It Now

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Desktop gallon betta tank - desktop,

Desktop gallon betta tank - desktop,

£22.49 · Buy It Now

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Brand new large - **, glass

Brand new large - **, glass

£187.90 · Buy It Now

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Fluval roma led aquariums - roma, bt

Fluval roma led aquariums - roma, bt

£163.99 · Buy It Now

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Led glass aquarium - fish, tank

Led glass aquarium - fish, tank

£49.95 · Buy It Now

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Airstones compatible with - compatible,

Airstones compatible with - compatible,

£4.99 · Buy It Now

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Superfish start aquarium - start,

Superfish start aquarium - start,

£189.95 · Buy It Now

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Hidom external aquarium filter - aquarium,

Hidom external aquarium filter - aquarium,

£10.95 · Buy It Now

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Brand new glass fish tank - glass,

Brand new glass fish tank - glass,

£151.50 · Buy It Now

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Undergravel filter kit - filter,

Undergravel filter kit - filter,

£6.49 · Buy It Now

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Fish tank starter kit - kit, ~170l

Fish tank starter kit - kit, ~170l

£99.99 · Buy It Now

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Swell small nano - small, 30cm

Swell small nano - small, 30cm

£43.99 · Buy It Now

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Aquarium pond filter wool - pond,

Aquarium pond filter wool - pond,

£64.99 · Buy It Now

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Fluval betta premium aquarium - premium,

Fluval betta premium aquarium - premium,

£99.99 · Buy It Now

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4pcs aquarium scissor - 4pcs, tool

4pcs aquarium scissor - 4pcs, tool

£8.58 · Buy It Now

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Aquarium scissor tool - uk,

Aquarium scissor tool - uk,

£9.89 · Buy It Now

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Brand new fish tank - new**,

Brand new fish tank - new**,

£135.89 · Buy It Now

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Hidom aquarium air - pump, fish

Hidom aquarium air - pump, fish

£9.95 · Buy It Now

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Pawhut aquarium 13l glass - glass, fish

Pawhut aquarium 13l glass - glass, fish

£49.99 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£14.00 · Buy It Now

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Floating magnetic algae - floating,

Floating magnetic algae - floating,

£7.99 · Buy It Now

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Marina lux led aquarium kits - aquarium,

Marina lux led aquarium kits - aquarium,

£75.95 · Buy It Now

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Small aquarium fish tank - aquarium,

Small aquarium fish tank - aquarium,

£29.95 · Buy It Now

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Tnc complete aquarium plant - tnc,

Tnc complete aquarium plant - tnc,

£53.90 · Buy It Now

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Ciano aqua fish tank - aqua, 60

Ciano aqua fish tank - aqua, 60

£35.50 · Buy It Now

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Fish tank set - tank,

Fish tank set - tank,

£20.99 · Buy It Now

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Pawhut fish tank - pawhut, nano

Pawhut fish tank - pawhut, nano

£25.99 · Buy It Now

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8pcs set fish tank - 8pcs/set,

8pcs set fish tank - 8pcs/set,

£8.49 · Buy It Now

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Aquarium fish tank 5050 rgb - fish,

Aquarium fish tank 5050 rgb - fish,

£13.99 · Buy It Now

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Aquarium driftwood red moor - aquarium,

Aquarium driftwood red moor - aquarium,

£43.99 · Buy It Now

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Superfish aqua flow - superfish, aqua-flow

Superfish aqua flow - superfish, aqua-flow

£14.99 · Buy It Now

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Brand new large fish tank - new**,

Brand new large fish tank - new**,

£177.45 · Buy It Now

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Aquarium fish tank from - aquarium,

Aquarium fish tank from - aquarium,

£285.99 · Buy It Now

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Seachem purigen filter - seachem,

Seachem purigen filter - seachem,

£11.99 · Buy It Now

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Aquarium plant root tabs fish - plant,

Aquarium plant root tabs fish - plant,

£17.95 · Buy It Now

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Complete aquarium kit - 9l,

Complete aquarium kit - 9l,

£58.95 · Buy It Now

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35l glass rectangular - glass, fish

35l glass rectangular - glass, fish

£42.30 · Buy It Now

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Superfish quadro aquarium - 40,

Superfish quadro aquarium - 40,

£114.99 · Buy It Now

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Brand new fish tank - fish,

Brand new fish tank - fish,

£179.99 · Buy It Now

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Aquarium fish tank set 60lt - tank, up

Aquarium fish tank set 60lt - tank, up

£68.30 · Buy It Now

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📊96 listings · from £4.49 · avg £69.49
⚠️ These listings were last updated more than 8 days ago. Search for fresh listings

Browse 96 fish tanks listings currently in our index. Prices range from £4.49 to £291.9, with an average of £69.49. 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 fish tanks →

Try this: juwel trigon 350 | hexagonal fish tank | marine aquarium tank | nano marine aquarium | shrimp | vortech | 3ft aquarium | 5 ft aquarium | aquareef | biorb

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about fish tanks

Whether you are looking for a brand-new or second-hand 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 £4.49, while premium listings can reach £291.9 — giving you a wide budget spread to work with. The average price of £69.49 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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