Koi pond tanks
Koi pond tanks for sale on Ireland's largest auction and classifieds sites
Pond aquarium uv - pond, - £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
1000l collapsible folding - 1000l, - £277.33
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
Aquarium pond filter wool - aquarium, - £14.99
Finest filters are • Leading supplier high • Quality 100 aquarium - Free postage - New and Used
Finest filters are • Leading supplier high • Quality 100 aquarium - Free postage - New and Used
Pond air pump koi fish - pond, - £37.99
You are purchasing • High quality air • Pump suitable use - Free postage - New and Used
You are purchasing • High quality air • Pump suitable use - Free postage - New and Used
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1500l collapsible folding - 1500l, - £307.49
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
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48 listings · from £1.69 · avg £137.78
⚠️ These listings were last updated more than 13 days ago.
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Browse 48 koi pond tanks listings currently in our index. Prices range from £1.69 to £604.9, with an average of £137.78. 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 koi pond tanks →
700l collapsible folding - 700l, round - £249.25
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
Kockney koi solvent - koi, tank - £1.69
Solvent weld tank • Connectors pond pipe • Should used conjunction - Free postage - New and Used
Solvent weld tank • Connectors pond pipe • Should used conjunction - Free postage - New and Used
Large quarantine tank for - large, koi - £37.99
Professional grade bowl • Koi shows photography • Essential quarantine procedures - Free postage - New and Used
Professional grade bowl • Koi shows photography • Essential quarantine procedures - Free postage - New and Used
Linear air pump - air, koi - £150.36
Hydroponic aquaponic systems • Looking more have • Large range quality - Free postage - New and Used
Hydroponic aquaponic systems • Looking more have • Large range quality - Free postage - New and Used
Pond koi filter media bio - pond, - £69.99
All one pond • Pump sterilizer foams • Solutions cup 129 - Free postage - New and Used
All one pond • Pump sterilizer foams • Solutions cup 129 - Free postage - New and Used
Superfish koi fish pond - superfish, - £44.99
Pond plant basket • Hessian needed finofil • Planet labs aquarium - Free postage - New and Used
Pond plant basket • Hessian needed finofil • Planet labs aquarium - Free postage - New and Used
Aquarium air line green - line, fish - £199.99
Length green pvc • Aquarium pipe this • Used aquariums filter - Free postage - New and Used
Length green pvc • Aquarium pipe this • Used aquariums filter - Free postage - New and Used
Jebao submersible pond - jebao, - £114.95
Jebao pond filter • Pump cage does • Not include pre - Free postage - New and Used
Jebao pond filter • Pump cage does • Not include pre - Free postage - New and Used
2000l collapsible folding - collapsible, - £327.99
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
Koi pond quarantine tank - koi, - £312.70
Insulated fibreglass water • Tank new never • Used cost 1000 - Free postage - New and Used
Insulated fibreglass water • Tank new never • Used cost 1000 - Free postage - New and Used
Koi filter tank water - koi, - £414.70
This wras approved • Fibreglass water holding • Tank that was - Free postage - New and Used
This wras approved • Fibreglass water holding • Tank that was - Free postage - New and Used
Koi quarantine tank - quarantine, for - £37.99
Professional grade bowl • Koi shows photography • Essential quarantine procedures - Free postage - New and Used
Professional grade bowl • Koi shows photography • Essential quarantine procedures - Free postage - New and Used
Goldfish koi high - &, - £10.99
Guide feeding all • Goldfish koi carp • Cold water pond - Free postage - New and Used
Guide feeding all • Goldfish koi carp • Cold water pond - Free postage - New and Used
2500l collapsible folding - collapsible, - £358.59
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
These tanks are • Often used quarantine • Fish before adding - Free postage - New and Used
Quarantine tank koi growing - tank, - £430.49
- Free postage - New and Used
- Free postage - New and Used
Inch 55mm solvent weld pipe - 2, - £1.99
Quality pond plants • Are growers suppliers • Established 1996 heart - Free postage - New and Used
Quality pond plants • Are growers suppliers • Established 1996 heart - Free postage - New and Used
Air line splitter - line, manifold - £449.99
Compact design ensures • Long service life • Low energy use - Free postage - New and Used
Compact design ensures • Long service life • Low energy use - Free postage - New and Used
Air line fish tank windscreen - line, - £604.90
Non reinforced technical • Hose suitable air • Flow food substances - Free postage - New and Used
Non reinforced technical • Hose suitable air • Flow food substances - Free postage - New and Used
Retro fit domed - retro, - £96.99
Unlike traditional bottom • Drains installation simple • Requires digging alterations - Free postage - New and Used
Unlike traditional bottom • Drains installation simple • Requires digging alterations - Free postage - New and Used
Aquarium bubbles pond pump - bubbles, - £159.99
Sure aqua jet • Aeration range premium • Pond koi air - Free postage - New and Used
Sure aqua jet • Aeration range premium • Pond koi air - Free postage - New and Used
Filter floss wool - foam, media - £43.49
Aquarium pond filter • Wool works basis • Electrostatic attraction debris - Free postage - New and Used
Aquarium pond filter • Wool works basis • Electrostatic attraction debris - Free postage - New and Used
Superfish koi flow pond air - superfish, - £54.95
Available three different • Sizes output ranging • From litres air - Free postage - New and Used
Available three different • Sizes output ranging • From litres air - Free postage - New and Used
Pond air pump koi - pump, - £449.99
Aco 208 30mm • 318 43mm diaphragm • Hap 100 80mm - Free postage - New and Used
Aco 208 30mm • 318 43mm diaphragm • Hap 100 80mm - Free postage - New and Used
Square cut filter - 1, - £15.99
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
25x pond tank snails - 25x, pond/tank/snails.fish - £13.47
Any questions please • Message thanks dan - Free postage - New and Used
Any questions please • Message thanks dan - Free postage - New and Used
Non return valve - return, fish - £24.99
Clear that piece • Debris trapped valve • Preventing 100 closure - Free postage - New and Used
Clear that piece • Debris trapped valve • Preventing 100 closure - Free postage - New and Used
Alfagrog pond biological - pond, - £6.95
Why alfagrog effective • Everything aquarist pond • Keeper pet loverview - Free postage - New and Used
Why alfagrog effective • Everything aquarist pond • Keeper pet loverview - Free postage - New and Used
Weighted suction dome - weighted, - £89.99
Rigid pipework 56mm • 43mm 1.5 unlike • Traditional bottom drains - Free postage - New and Used
Rigid pipework 56mm • 43mm 1.5 unlike • Traditional bottom drains - Free postage - New and Used
Solvent weld threaded tank - weld, - £7.99
Threaded tank connector • Waste 110mm spigot • Connectors are solvent - Free postage - New and Used
Threaded tank connector • Waste 110mm spigot • Connectors are solvent - Free postage - New and Used
Pond air pump koi fish - air, - £389.99
Aco 208 30mm • 318 43mm diaphragm • Hap 100 80mm - Free postage - New and Used
Aco 208 30mm • 318 43mm diaphragm • Hap 100 80mm - Free postage - New and Used
Pond tank liner connector - tank, koi - £10.49
Pipework produced high • British standards yamitsu • Tank liner connectors - Free postage - New and Used
Pipework produced high • British standards yamitsu • Tank liner connectors - Free postage - New and Used
Large inch 110mm - 4, - £64.99
Keep your koi • Pond filtration system • Protected these high - Free postage - New and Used
Keep your koi • Pond filtration system • Protected these high - Free postage - New and Used
Koi sock x - 1x, 12" - £30.19
Using koi sock • Net safest way • Transferring large fish - Free postage - New and Used
Using koi sock • Net safest way • Transferring large fish - Free postage - New and Used
Koi pond fiba glass - glass, tank - £187.90
Koi pond fibaglass • Tank free standing • Requires two men - Free postage - New and Used
Koi pond fibaglass • Tank free standing • Requires two men - Free postage - New and Used
Diamond cut filter grids - diamond, - £13.99
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
Solvent weld koi - pond, fittings - £2.85
Solvent weld 1.5 • Reducer filter insert • 1.25 boot access - Free postage - New and Used
Solvent weld 1.5 • Reducer filter insert • 1.25 boot access - Free postage - New and Used
40mm threaded tank connector - 40mm, - £7.99
Thread has relevance • Tank connector being • Sold this threaded - Free postage - New and Used
Thread has relevance • Tank connector being • Sold this threaded - Free postage - New and Used
Koi pond airpump - airpump, - £89.99
All aquarists know • That fish require • Oxygen live what - Free postage - New and Used
All aquarists know • That fish require • Oxygen live what - Free postage - New and Used
Kockney koi tank connector 5 - connector, 1.5 - £1.99
Kockney koi tank • Connectors these fit • Pipe 43mm externally - Free postage - New and Used
Kockney koi tank • Connectors these fit • Pipe 43mm externally - Free postage - New and Used
Flanged tank connector - flanged, 4" - £9.82
- Free postage - New and Used
- Free postage - New and Used
55mm flanged tank - , - £6.98
- Free postage - New and Used
- Free postage - New and Used
Diamond cut filter - diamond, - £18.99
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
These quality polypropylene • Filter grids specifically • Made aquatic use - Free postage - New and Used
Koi fish grow holding - koi, on - £154.95
Koi holding tank • Imported from italy • Why choose our - Free postage - New and Used
Koi holding tank • Imported from italy • Why choose our - Free postage - New and Used
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Everything you need to know about koi pond tanks
Whether you are looking for a brand-new or second-hand koi pond 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 £1.69, while premium listings can reach £604.9 — giving you a wide budget spread to work with. The average price of £137.78 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.