Fish tanks
Fish tanks for sale on Ireland's largest auction and classifieds sites
Diversa aquarium fish - diversa, - £210.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
Co2 carbon dioxide fire - co2, - £35.00
Co2 carbon dioxide • Bsi kitemarked wall • Fire extinguisher - Free postage - New and Used
Co2 carbon dioxide • Bsi kitemarked wall • Fire extinguisher - Free postage - New and Used
Hepo aquarium heater fish - hepo, - £10.99
Aquariums 500 litres • Model suitable use • Hepo 608 range - Free postage - New and Used
Aquariums 500 litres • Model suitable use • Hepo 608 range - Free postage - New and Used
Diversa aquarium fish - diversa, - £355.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
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Diversa aquarium with stand - aquarium, / - £479.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
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48 listings · from £4.99 · avg £139.12
⚠️ These listings were last updated more than 14 days ago.
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Browse 48 fish tanks listings currently in our index. Prices range from £4.99 to £722.99, with an average of £139.12. 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 →
Brand new large fish tank - **brand, - £179.95
71l fish tank • Perfect beginner child • Setup simply add - Free postage - New and Used
71l fish tank • Perfect beginner child • Setup simply add - Free postage - New and Used
Swell aquarium 60cm tropical - swell, - £88.99
Only turn your • Filter heater after • You have filled - Free postage - New and Used
Only turn your • Filter heater after • You have filled - Free postage - New and Used
Brand new fish tank - **brand, new** - £164.99
Hinged flo hood • Provides secure coverage • While allowing quick - Free postage - New and Used
Hinged flo hood • Provides secure coverage • While allowing quick - Free postage - New and Used
Brand new fish tank - **brand, - £177.49
58l fish tank • Optional stand perfect • Beginner child setup - Free postage - New and Used
58l fish tank • Optional stand perfect • Beginner child setup - Free postage - New and Used
Led glass aquarium fish - led, tank - £49.95
Specially allow plenty • Room your fish • Swim explore - Free postage - New and Used
Specially allow plenty • Room your fish • Swim explore - Free postage - New and Used
Brand new fish - new**, tank - £161.89
Hinged flo hood • Provides secure coverage • While allowing quick - Free postage - New and Used
Hinged flo hood • Provides secure coverage • While allowing quick - Free postage - New and Used
60l hexagon black fish - hexagon, - £165.99
Complete 11w ip67 • Rated built lighting • System bright illumination - Free postage - New and Used
Complete 11w ip67 • Rated built lighting • System bright illumination - Free postage - New and Used
Aquarium fish tank - 5, - £22.49
Fish tank • Lightweight space saving • Its top feeding - Free postage - New and Used
Fish tank • Lightweight space saving • Its top feeding - Free postage - New and Used
Aquarium fish tank external - aquarium, - £99.99
Allpondsolutions aquarium external • Filter range optional • Steriliser built sterilizer - Free postage - New and Used
Allpondsolutions aquarium external • Filter range optional • Steriliser built sterilizer - Free postage - New and Used
Aquarium fish tank - aquarium, - £22.49
Fish tank • Lightweight space saving • Its top feeding - Free postage - New and Used
Fish tank • Lightweight space saving • Its top feeding - Free postage - New and Used
Hidom internal fish - fish, tank - £9.45
Hidom range internal • Filters are ideal • Both freshwater marine - Free postage - New and Used
Hidom range internal • Filters are ideal • Both freshwater marine - Free postage - New and Used
Small aquarium fish - fish, tank - £29.95
Litre version our • Nano aquariums are • Ery simple practical - Free postage - New and Used
Litre version our • Nano aquariums are • Ery simple practical - Free postage - New and Used
Diversa aquarium with stand - stand, / - £405.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
Ciano aqua classic - 20, - £39.45
Aqua classic compact • Glass aquarium ideal • Beginners secondary tank - Free postage - New and Used
Aqua classic compact • Glass aquarium ideal • Beginners secondary tank - Free postage - New and Used
Aqua one betta - one, - £130.95
Aqua one betta • Trio glass aquarium • 32l three fish - Free postage - New and Used
Aqua one betta • Trio glass aquarium • 32l three fish - Free postage - New and Used
Aquael glass aquarium fish - glass, - £54.99
Aquael glass aquarium • More than just • Tank gateway new - Free postage - New and Used
Aquael glass aquarium • More than just • Tank gateway new - Free postage - New and Used
Oase biorb classic - biorb, mcr - £132.95
Baby biorb 15l • Classic mcr aquariums • You looking simple - Free postage - New and Used
Baby biorb 15l • Classic mcr aquariums • You looking simple - Free postage - New and Used
Aquarium fish tank from - tank, - £145.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
Aqua one aqualume glass - aqua, - £99.99
Such have huge • Wealth experience online • Trading present list - Free postage - New and Used
Such have huge • Wealth experience online • Trading present list - Free postage - New and Used
Diversa aquarium with - aquarium, - £409.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
Swell small aquarium 25cm - swell, - £52.99
Swell aquaventure plus • Aquarium premium 25cm • Black glass cube - Free postage - New and Used
Swell aquaventure plus • Aquarium premium 25cm • Black glass cube - Free postage - New and Used
Small nano aquarium - nano, - £54.99
These aquariums are • Very simple practical • Nano tanks shrimp - Free postage - New and Used
These aquariums are • Very simple practical • Nano tanks shrimp - Free postage - New and Used
Juwel led aquariums - led, rio - £722.99
Juwel trigon 190 • 350 optimum filtering • Aquariums are fitted - Free postage - New and Used
Juwel trigon 190 • 350 optimum filtering • Aquariums are fitted - Free postage - New and Used
Brand new fish tank - new**, - £179.99
Fish tank stand • Perfect beginner child • Setup simply add - Free postage - New and Used
Fish tank stand • Perfect beginner child • Setup simply add - Free postage - New and Used
Brand new fish tank - new**, - £179.99
58l fish tank • Optional stand perfect • Beginner child setup - Free postage - New and Used
58l fish tank • Optional stand perfect • Beginner child setup - Free postage - New and Used
Clear glass gallon - gallon, tank - £24.49
Will try our • Best serve you • This betta fish - Free postage - New and Used
Will try our • Best serve you • This betta fish - Free postage - New and Used
Swell small nano aquarium - swell, 30cm - £43.99
Swell aquaventure aquarium • 30cm stylish beginner • Friendly 22l nano - Free postage - New and Used
Swell aquaventure aquarium • 30cm stylish beginner • Friendly 22l nano - Free postage - New and Used
Diversa aquarium with stand - diversa, - £185.99
This way you • Will know exactly • When expect your - Free postage - New and Used
This way you • Will know exactly • When expect your - Free postage - New and Used
Finest filters compatible air - finest, - £25.99
You are purchasing • Set high quality • Compatible air stones - Free postage - New and Used
You are purchasing • Set high quality • Compatible air stones - Free postage - New and Used
Fluval 20l betta aquarium - fluval, - £99.99
Fluval betta premium • Integrated water change • Feature ensures effortless - Free postage - New and Used
Fluval betta premium • Integrated water change • Feature ensures effortless - Free postage - New and Used
Brand new large fish - brand, ** - £187.90
Wight isle man • Channel islands isles • Scilly scottish highlands - Free postage - New and Used
Wight isle man • Channel islands isles • Scilly scottish highlands - Free postage - New and Used
Ciano aqua aquarium - 20, with - £51.91
Cover hinged white • Spectrum led light • Ciano cla20 included - Free postage - New and Used
Cover hinged white • Spectrum led light • Ciano cla20 included - Free postage - New and Used
Aquarium fish tank - fish, - £7.55
Aquarium fish tank • Background double sided • Height 50cm give - Free postage - New and Used
Aquarium fish tank • Background double sided • Height 50cm give - Free postage - New and Used
Pond aquarium uv light - /, - £199.99
Steriliser are also • Supplied separate glass • Viewport which can - Free postage - New and Used
Steriliser are also • Supplied separate glass • Viewport which can - Free postage - New and Used
45x25cm glass fish tank no - glass, - £63.10
45x25cm glass fish • Rectangular tank made • Capacity litres does - Free postage - New and Used
45x25cm glass fish • Rectangular tank made • Capacity litres does - Free postage - New and Used
245l 120cm black fish tank - 245l, & - £429.99
Will require signing • This tank supplied • 300w glass heater - Free postage - New and Used
Will require signing • This tank supplied • 300w glass heater - Free postage - New and Used
Swell small aquarium 38cm - small, - £52.99
Swell aquaventure aquarium • 38cm compact all • One 37l glass - Free postage - New and Used
Swell aquaventure aquarium • 38cm compact all • One 37l glass - Free postage - New and Used
Aqua one haven betta - aqua, 5l - £29.99
Aqua one haven • Aquarium betta need • Kept stable temperature - Free postage - New and Used
Aqua one haven • Aquarium betta need • Kept stable temperature - Free postage - New and Used
Aqua one betta - one, sanctuary - £69.99
Together pre set • Heater keep water • Right temperature will - Free postage - New and Used
Together pre set • Heater keep water • Right temperature will - Free postage - New and Used
Marina lux led 38l aquarium - marina, - £73.47
Marina lux led • 38l aquarium high • Kit you can - Free postage - New and Used
Marina lux led • 38l aquarium high • Kit you can - Free postage - New and Used
Airstones compatible with - 5, - £4.99
Airstones compatible biorb • Aquariums orb fish • Tanks bio filter - Free postage - New and Used
Airstones compatible biorb • Aquariums orb fish • Tanks bio filter - Free postage - New and Used
Hidom aquarium air pump - aquarium, - £9.45
Hidom air pump • Series oxygenate your • Aquarium efficiently quietly - Free postage - New and Used
Hidom air pump • Series oxygenate your • Aquarium efficiently quietly - Free postage - New and Used
Brand new large - new**, - £237.95
Fish tank stand • Perfect beginner child • Setup simply add - Free postage - New and Used
Fish tank stand • Perfect beginner child • Setup simply add - Free postage - New and Used
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
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 48 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 £4.99, while premium listings can reach £722.99 — giving you a wide budget spread to work with. The average price of £139.12 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.