Fish tanks
Fish tanks for sale on Ireland's largest auction and classifieds sites
Diversa aquarium fish - aquarium, - £129.95
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
Brand new fish - new**, tank - £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
Co2 carbon dioxide - co2, - £50.00
Co2 carbon dioxide • Fire extinguisher kitemarked • Wall bracket horn - Free postage - New and Used
Co2 carbon dioxide • Fire extinguisher kitemarked • Wall bracket horn - Free postage - New and Used
Diversa aquarium fish tank - diversa, - £69.95
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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Small aquarium fish tank - aquarium, - £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
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48 listings · from £6.29 · avg £99.85
⚠️ These listings were last updated more than 102 days ago.
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Browse 48 fish tanks listings currently in our index. Prices range from £6.29 to £549.99, with an average of £99.85. 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 →
Aquarium fish tank small - aquarium, - £25.99
Desktop water scene • Aquarium transform your • Space this aesthetic - Free postage - New and Used
Desktop water scene • Aquarium transform your • Space this aesthetic - Free postage - New and Used
Small fish tank - tank, - £26.99
Greenery oxygen oasis • Self sustaining ecosystem • This aquarium promotes - Free postage - New and Used
Greenery oxygen oasis • Self sustaining ecosystem • This aquarium promotes - Free postage - New and Used
Fluval flex led aquarium - led, - £129.99
Available sizes 34l • 57l gal dual • Includes spray bar - Free postage - New and Used
Available sizes 34l • 57l gal dual • Includes spray bar - Free postage - New and Used
Aquael glass aquarium fish - glass, - £65.99
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
Ciano aqua classic - ciano, - £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
Small starter aquarium fish - starter, - £54.99
These aquariums are • Ery simple practical • Nano tanks shrimp - Free postage - New and Used
These aquariums are • Ery simple practical • Nano tanks shrimp - Free postage - New and Used
Fluval betta premium - premium, aquarium - £99.99
Expansive fluval betta • 22.7l premium aquarium • Kit has been - Free postage - New and Used
Expansive fluval betta • 22.7l premium aquarium • Kit has been - Free postage - New and Used
Aquarium fish tank from - aquarium, - £79.95
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
Juwel rio 240 led - 240, aquarium - £187.90
Juwel rio 240 • Led aquarium fish • Tank sleek stylish - Free postage - New and Used
Juwel rio 240 • Led aquarium fish • Tank sleek stylish - Free postage - New and Used
Brand new fish - fish, tank - £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 large fish - new**, - £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
Ciano aqua aquarium led 30 - led, - £51.45
Aquarium holds litres • Water ideal starter • Tank children adults - Free postage - New and Used
Aquarium holds litres • Water ideal starter • Tank children adults - Free postage - New and Used
Diversa aquarium with - diversa, / - £349.95
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
Led glass aquarium fish tank - fish, - £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
Aqua one betta - betta, glass - £143.95
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
Aquarium fish tank - fish, - £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
Live aquarium for - 25, - £14.49
These plants will • Bunched fives you • Receive bunches five - Free postage - New and Used
These plants will • Bunched fives you • Receive bunches five - Free postage - New and Used
Internal aquarium fish tank - internal, - £6.59
Internal aquarium filter • Suitable fresh salt • Tanks litres this - Free postage - New and Used
Internal aquarium filter • Suitable fresh salt • Tanks litres this - Free postage - New and Used
Small nano aquarium fish tank - 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
Aqua one focus aquarium 23l - aqua, - £77.95
Aqua one focus • Aquariums allow you • Create beautiful underwater - Free postage - New and Used
Aqua one focus • Aquariums allow you • Create beautiful underwater - Free postage - New and Used
Aquarium fish tank - tank, led - £35.90
Product description - Free postage - New and Used
Product description - Free postage - New and Used
Fluval 20l betta aquarium fish - 20l, - £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
Ciano tartariums 80 - ciano, 40 - £89.99
Aqua stands from • Ciano are perfectly • Tartariums this dry - Free postage - New and Used
Aqua stands from • Ciano are perfectly • Tartariums this dry - Free postage - New and Used
Juwell 70l aquarium fish - juwell, - £47.50
Tank led light • Juwell 70l aquarium • High quality product - Free postage - New and Used
Tank led light • Juwell 70l aquarium • High quality product - Free postage - New and Used
140 litter fish tank full - fish, tank. - £312.70
140 litter fish • Tank full set • Ready comes loads - Free postage - New and Used
140 litter fish • Tank full set • Ready comes loads - Free postage - New and Used
Allpondsolutions ultra clear - allpondsolutions, - £39.99
Allpondsolutions nano tropical • Clear glass led • Light aquarium fish - Free postage - New and Used
Allpondsolutions nano tropical • Clear glass led • Light aquarium fish - Free postage - New and Used
Superfish white home litre - superfish, - £41.26
This collection only • Item from hythe • Kent - Free postage - New and Used
This collection only • Item from hythe • Kent - Free postage - New and Used
Fluval provac powered aquarium - provac, - £21.49
Fluval pro vac • Pads 4pk • Suitable use provac - Free postage - New and Used
Fluval pro vac • Pads 4pk • Suitable use provac - Free postage - New and Used
Fish tank glass aquarium - aquarium, with - £53.99
Stylish functional sleek • Look feeding hole • Ventilation top cover - Free postage - New and Used
Stylish functional sleek • Look feeding hole • Ventilation top cover - Free postage - New and Used
Fluval aquasky led - 3.0, - £124.99
Introducing fluval aquasky • 3.0 led ultimate • Aquarium lighting solution - Free postage - New and Used
Introducing fluval aquasky • 3.0 led ultimate • Aquarium lighting solution - Free postage - New and Used
Hidom internal fish tank - internal, - £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
Brand new large fish - **brand, tank - £187.90
Excludes following locations • Wight isle man • Channel islands isles - Free postage - New and Used
Excludes following locations • Wight isle man • Channel islands isles - Free postage - New and Used
Allpondsolutions ultra clear - allpondsolutions, - £39.99
Tank brilliant white • Glass achieves practically • Colourless appearance minimal - Free postage - New and Used
Tank brilliant white • Glass achieves practically • Colourless appearance minimal - Free postage - New and Used
Love fish 40l - love, - £63.10
Fluval filter • Love fish panorama • 40l aquarium used - Free postage - New and Used
Fluval filter • Love fish panorama • 40l aquarium used - Free postage - New and Used
Love fish panorama tank 64l - panorama, - £275.99
Paid over 400 • Whole set including • Love fish panorama - Free postage - New and Used
Paid over 400 • Whole set including • Love fish panorama - Free postage - New and Used
Fish fun bubble - fish, wall - £6.29
Fun bubble wall • Enhance your aquarium • Led light create - Free postage - New and Used
Fun bubble wall • Enhance your aquarium • Led light create - Free postage - New and Used
Aquarium fish tank internal - fish, - £29.99
You are purchasing • High quality aquarium • Internal filter built - Free postage - New and Used
You are purchasing • High quality aquarium • Internal filter built - Free postage - New and Used
Fluval aquasky led - 3.0, - £114.99
Ease use performance • Aquasky 3.0 boasts • Bluetooth 2.4 ghz - Free postage - New and Used
Ease use performance • Aquasky 3.0 boasts • Bluetooth 2.4 ghz - Free postage - New and Used
Aquarium sand fish - sand, - £59.99
Suitable biotope above • All perfect plant • Aquariums right fraction - Free postage - New and Used
Suitable biotope above • All perfect plant • Aquariums right fraction - Free postage - New and Used
245l 120cm black - 120cm, - £549.99
245l black fish • Tank gloss finish • Cabinet aquarium led - Free postage - New and Used
245l black fish • Tank gloss finish • Cabinet aquarium led - Free postage - New and Used
Hidom proheat quartz - proheat, - £18.45
Hidom proheat series • Quartz glass aquarium • Heater has been - Free postage - New and Used
Hidom proheat series • Quartz glass aquarium • Heater has been - Free postage - New and Used
Fish tank with led lights - tank, - £78.70
Tank made glass • Perfect viewing fish • Other aquatic animals - Free postage - New and Used
Tank made glass • Perfect viewing fish • Other aquatic animals - Free postage - New and Used
Biorb flow 30l - flow, - £109.90
Biorb flow 30l • Fish tank complete • Aquarium setup brand - Free postage - New and Used
Biorb flow 30l • Fish tank complete • Aquarium setup brand - 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
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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 £6.29, while premium listings can reach £549.99 — giving you a wide budget spread to work with. The average price of £99.85 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.