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Big fish tanks

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

Home / eBay / Big fish tanks refurbished & used for sale | For Sale UK
73cm piece shipwreck - 73cm,

73cm piece shipwreck - 73cm,

£59.99 · Buy It Now

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Glass rectangular fish - glass,

Glass rectangular fish - glass,

£299.99 · Buy It Now

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Aquarium fish tank internal - tank,

Aquarium fish tank internal - tank,

£29.99 · Buy It Now

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Hidom proheat quartz - hidom,

Hidom proheat quartz - hidom,

£18.45 · Buy It Now

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Koi fish grow holding - fish, on

Koi fish grow holding - fish, on

£209.00 · Buy It Now

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Supa big plant weight - big,

Supa big plant weight - big,

£9.99 · Buy It Now

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Fish tank filter - in, 1

Fish tank filter - in, 1

£7.99 · Buy It Now

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Hidom aquarium air pump - aquarium,

Hidom aquarium air pump - aquarium,

£8.45 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£11.00 · Buy It Now

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Hozelock raised pond set - raised,

Hozelock raised pond set - raised,

£339.95 · Buy It Now

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Supa big 10ft aquarium - supa,

Supa big 10ft aquarium - supa,

£9.60 · Buy It Now

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Hygger hg051 3fan - hygger,

Hygger hg051 3fan - hygger,

£33.99 · Buy It Now

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Aquarium water change pump - ,

Aquarium water change pump - ,

£25.95 · Buy It Now

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Big aquarium fish tank - big,

Big aquarium fish tank - big,

£363.70 · Buy It Now

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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£59.99 · Buy It Now

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Best aquarium heater 500w ptc - aquarium,

Best aquarium heater 500w ptc - aquarium,

£60.57 · Buy It Now

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Seachem purigen filter - purigen,

Seachem purigen filter - purigen,

£15.99 · Buy It Now

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Fish tank aquarium - fish,

Fish tank aquarium - fish,

£150.00 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£6.99 · Buy It Now

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Fluval external filter - fluval,

Fluval external filter - fluval,

£57.90 · Buy It Now

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In1 aquarium fish - fish, tank

In1 aquarium fish - fish, tank

£11.00 · Buy It Now

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Aquarium sponge filter bio - aquarium,

Aquarium sponge filter bio - aquarium,

£12.94 · Buy It Now

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Hidom proheat quartz - hidom, aquarium

Hidom proheat quartz - hidom, aquarium

£18.45 · Buy It Now

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In1 aquarium fish tank - 4,

In1 aquarium fish tank - 4,

£9.99 · Buy It Now

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In1 aquarium fish tank - fish,

In1 aquarium fish tank - fish,

£10.99 · Buy It Now

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Aquarium fish tank - fish,

Aquarium fish tank - fish,

£10.00 · Buy It Now

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Fish tank filter 1 - filter, 3-in-1

Fish tank filter 1 - filter, 3-in-1

£13.67 · Buy It Now

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Aquarium fish tank - 1,

Aquarium fish tank - 1,

£9.99 · Buy It Now

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High quality marine - high,

High quality marine - high,

£66.45 · Buy It Now

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Fluval 107 207 - , fx

Fluval 107 207 - , fx

£216.99 · Buy It Now

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Fluval external filter 107 - external, 207

Fluval external filter 107 - external, 207

£229.99 · Buy It Now

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Sterilizer submersible - sterilizer,

Sterilizer submersible - sterilizer,

£33.22 · Buy It Now

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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£4.95 · Buy It Now

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4in1 1500l aquarium fish - 1500l/h,

4in1 1500l aquarium fish - 1500l/h,

£10.98 · Buy It Now

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500 800 l h - 500,

500 800 l h - 500,

£26.99 · Buy It Now

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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£10.49 · Buy It Now

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In1 aquarium fish tank - aquarium,

In1 aquarium fish tank - aquarium,

£11.00 · Buy It Now

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External heater thermostat for - external,

External heater thermostat for - external,

£32.99 · Buy It Now

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Aqqa aquarium heater 500w - aqqa, ptc

Aqqa aquarium heater 500w - aqqa, ptc

£71.41 · Buy It Now

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Large fish tank decorations - large,

Large fish tank decorations - large,

£46.87 · Buy It Now

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In1 aquarium fish - 4, tank

In1 aquarium fish - 4, tank

£11.00 · Buy It Now

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Bubble magus roll filter arf - bubble,

Bubble magus roll filter arf - bubble,

£89.10 · Buy It Now

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Envii aquarium equaliser - aquarium,

Envii aquarium equaliser - aquarium,

£9.95 · Buy It Now

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Interpet new treatments - treatments, water

Interpet new treatments - treatments, water

£8.45 · Buy It Now

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Wave maker seio - wave, m2600

Wave maker seio - wave, m2600

£5.45 · Buy It Now

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Aquarium equaliser 50g - ph, &

Aquarium equaliser 50g - ph, &

£12.95 · Buy It Now

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In1 aquarium fish tank water - 4,

In1 aquarium fish tank water - 4,

£9.00 · Buy It Now

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Superfish aquaflow internal - superfish,

Superfish aquaflow internal - superfish,

£29.99 · Buy It Now

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Aquarium fish transport - aquarium,

Aquarium fish transport - aquarium,

£25.95 · Buy It Now

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Lifelike aquarium plants set - plants,

Lifelike aquarium plants set - plants,

£15.13 · Buy It Now

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Stainless steel aquarium - steel,

Stainless steel aquarium - steel,

£10.99 · Buy It Now

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Fluval external filter 107 - filter,

Fluval external filter 107 - filter,

£305.99 · Buy It Now

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Juwel bioflow internal - juwel, filter

Juwel bioflow internal - juwel, filter

£149.95 · Buy It Now

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Interpet aquarium filter - aquarium,

Interpet aquarium filter - aquarium,

£21.49 · Buy It Now

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Baitai internal fish tank - baitai,

Baitai internal fish tank - baitai,

£10.50 · Buy It Now

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4in1 aquarium fish tank water - 4in1,

4in1 aquarium fish tank water - 4in1,

£10.99 · Buy It Now

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Aquarium internal fish tank - fish,

Aquarium internal fish tank - fish,

£12.90 · Buy It Now

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Aquarium fish tank - 4,

Aquarium fish tank - 4,

£10.99 · Buy It Now

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Aqqa aquarium heater 500w - aqqa,

Aqqa aquarium heater 500w - aqqa,

£58.85 · Buy It Now

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Modern style aquarium and - style,

Modern style aquarium and - style,

£1350.00 · Buy It Now

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Aquarium fish tank - tank, filter

Aquarium fish tank - tank, filter

£10.99 · Buy It Now

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Aquael turbo internal - turbo,

Aquael turbo internal - turbo,

£27.95 · Buy It Now

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Aquarium fish tank - 4, in

Aquarium fish tank - 4, in

£4.99 · Buy It Now

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Aquarium fish tank - 4,

Aquarium fish tank - 4,

£11.00 · Buy It Now

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4in1 plug aquarium fish - plug,

4in1 plug aquarium fish - plug,

£11.00 · Buy It Now

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Supa big 10ft aquarium - supa,

Supa big 10ft aquarium - supa,

£7.09 · Buy It Now

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Bubble magus curve marine - magus,

Bubble magus curve marine - magus,

£113.99 · Buy It Now

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Fluval cycle 500ml biological - cycle,

Fluval cycle 500ml biological - cycle,

£16.99 · Buy It Now

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In1 aquarium fish tank - fish,

In1 aquarium fish tank - fish,

£7.59 · Buy It Now

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Seachem sicce tidal hang - seachem,

Seachem sicce tidal hang - seachem,

£46.99 · Buy It Now

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Voonline t50 50w adjustable - voonline,

Voonline t50 50w adjustable - voonline,

£11.87 · Buy It Now

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In1 aquarium fish - aquarium, tank

In1 aquarium fish - aquarium, tank

£11.00 · Buy It Now

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In1 aquarium fish tank - 4,

In1 aquarium fish tank - 4,

£11.00 · Buy It Now

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Sunsun ybf 500 - 500, aquarium

Sunsun ybf 500 - 500, aquarium

£59.99 · Buy It Now

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Aquarium 500l fish tank - aquarium,

Aquarium 500l fish tank - aquarium,

£520.00 · Buy It Now

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Fish tank filter pump - fish,

Fish tank filter pump - fish,

£31.05 · Buy It Now

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500 800 l h aquarium - 500, l/h

500 800 l h aquarium - 500, l/h

£26.99 · Buy It Now

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Fluval external filter with - external,

Fluval external filter with - external,

£216.99 · Buy It Now

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In1 aquarium fish tank - in1,

In1 aquarium fish tank - in1,

£11.00 · Buy It Now

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Aquael asap filters internal - aquael,

Aquael asap filters internal - aquael,

£21.45 · Buy It Now

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Allpondsolutions external - allpondsolutions,

Allpondsolutions external - allpondsolutions,

£14.99 · Buy It Now

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Hygger hg051 1fan big - 1fan,

Hygger hg051 1fan big - 1fan,

£24.99 · Buy It Now

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Marine protein skimmer bubble - protein,

Marine protein skimmer bubble - protein,

£109.99 · Buy It Now

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Boyu aquarium fish tank - aquarium,

Boyu aquarium fish tank - aquarium,

£14.49 · Buy It Now

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Seachem sicce tidal hang - sicce, hang-on

Seachem sicce tidal hang - sicce, hang-on

£60.99 · Buy It Now

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Aquarium fish tank - in,

Aquarium fish tank - in,

£11.00 · Buy It Now

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Esha aquarium fish - fish, tank

Esha aquarium fish - fish, tank

£9.99 · Buy It Now

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In1 aquarium fish tank - fish,

In1 aquarium fish tank - fish,

£11.00 · Buy It Now

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Aquarium set 500l 180 - aquarium, x

Aquarium set 500l 180 - aquarium, x

£1650.00 · Buy It Now

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Fish tank filter 1 - filter, 4-in-1

Fish tank filter 1 - filter, 4-in-1

£10.06 · Buy It Now

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4in1 aquarium fish tank filter - fish,

4in1 aquarium fish tank filter - fish,

£11.00 · Buy It Now

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Fluval biomax rings - fluval,

Fluval biomax rings - fluval,

£12.90 · Buy It Now

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4in1 aquarium fish - 4in1,

4in1 aquarium fish - 4in1,

£11.00 · Buy It Now

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Modern style aquarium and - modern,

Modern style aquarium and - modern,

£1487.00 · Buy It Now

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Eheim reeflex 350 - 500, uv

Eheim reeflex 350 - 500, uv

£122.95 · Buy It Now

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Koi fish grow - grow, holding

Koi fish grow - grow, holding

£189.95 · Buy It Now

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📊96 listings · from £4.95 · avg £101.36

Browse 96 big fish tanks listings currently in our index. Prices range from £4.95 to £1650, with an average of £101.36. 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 big fish tanks →

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Everything you need to know about big fish tanks

Whether you are looking for a brand-new or second-hand big 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 £4.95, while premium listings can reach £1650 — giving you a wide budget spread to work with. The average price of £101.36 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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