Koi pond tanks
Koi pond tanks for sale on Ireland's largest auction and classifieds sites
700l collapsible folding - folding, round - £172.30
Koi fish • 700l collapsible folding • Holding quarantine show - Free postage - New and Used
Koi fish • 700l collapsible folding • Holding quarantine show - Free postage - New and Used
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
Koi carp pond quarantine - , quarantine/grow - £199.99
You are looking • One koi inspection • Stock tank they - Free postage - New and Used
You are looking • One koi inspection • Stock tank they - Free postage - New and Used
Pond air pump - air, koi - £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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Superfish koi fish pond blue - superfish, - £44.99
Lxwxd 78cm 50cm • 30cm - Free postage - New and Used
Lxwxd 78cm 50cm • 30cm - Free postage - New and Used
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48 listings · from £2.75 · avg £109.83
⚠️ These listings were last updated more than 104 days ago.
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Browse 48 koi pond tanks listings currently in our index. Prices range from £2.75 to £449.99, with an average of £109.83. 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 →
Koi grow holding quarantine - grow, - £209.00
Koi holding tank • Above below ground • Pond 500l have - Free postage - New and Used
Koi holding tank • Above below ground • Pond 500l have - Free postage - New and Used
Pond aquarium uv - /, light - £59.99
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
2500l collapsible folding - 2500l, - £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
Large quarantine tank for koi - large, - £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
Superfish koi pond - superfish, fish - £139.95
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
Kockney koi solvent weld - koi, - £14.84
Solvent weld • Fix tank connector • Place silicone sealant - Free postage - New and Used
Solvent weld • Fix tank connector • Place silicone sealant - Free postage - New and Used
Superfish koi fish - koi, pond - £48.50
- Free postage - New and Used
- Free postage - New and Used
Aquarium pond filter - aquarium, wool - £79.99
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
Koi pond quarantine tank - pond, - £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
Pond koi filter - koi, cell - £11.99
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
Koi fish stock - koi, - £260.70
Koi fish • Stock pond quarantine • Breading holding tank - Free postage - New and Used
Koi fish • Stock pond quarantine • Breading holding tank - Free postage - New and Used
Jebao submersible pond - submersible, - £94.95
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
Aquarium bubbles pond - aquarium, pump - £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
Goldfish koi high protein - goldfish, - £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
Pond air pump koi - pump, fish - £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
Superfish koi flow pond - 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
Quarantine tank koi growing - growing, on - £430.49
- Free postage - New and Used
- Free postage - New and Used
Kockney koi flanged tank - kockney, - £7.05
Kockney koi solvent • Weld pipe 110mmflange • Tank connector measures - Free postage - New and Used
Kockney koi solvent • Weld pipe 110mmflange • Tank connector measures - Free postage - New and Used
Koi pond airpump - koi, 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
Yamistu kockney koi - kockney, large - £8.29
High quality long • Life air stone • Zone iv41 iv50 - Free postage - New and Used
High quality long • Life air stone • Zone iv41 iv50 - Free postage - New and Used
Yamitsu deluxe koi - koi, sock - £41.95
Kockney koi deluxe • Professional yamitsu fish • Sock net using - Free postage - New and Used
Kockney koi deluxe • Professional yamitsu fish • Sock net using - Free postage - New and Used
Flanged tank connector - connector, 4" - £9.82
- Free postage - New and Used
- Free postage - New and Used
Jebao jecod 2023 - jebao, - £36.94
This pump has • Clip filter cage • New 2023 design - Free postage - New and Used
This pump has • Clip filter cage • New 2023 design - Free postage - New and Used
Air line fish tank - fish, windscreen - £3.86
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
Diamond cut filter grids - 3, x - £24.95
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
Alfagrog e25 pond biological - alfagrog, - £5.99
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
700l collapsible folding - collapsible, - £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
Aquarium natural pea - aquarium, - £24.99
Pea gravel 25kg • Sack bag 5mm • This high quality - Free postage - New and Used
Pea gravel 25kg • Sack bag 5mm • This high quality - 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
Aco 004 55w - pump, koi - £32.99
Widely applied aquaculture • Market restaurants fish • Tank seafood pond - Free postage - New and Used
Widely applied aquaculture • Market restaurants fish • Tank seafood pond - Free postage - New and Used
Koi pond solvent weld - koi, - £2.75
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
Koi pond measuring - measuring, tank - £63.23
Ideal keeping record • Your koi grows • Quite simply showing - Free postage - New and Used
Ideal keeping record • Your koi grows • Quite simply showing - Free postage - New and Used
Solvent weld pipe and - weld, - £5.99
Solvent weld pipe • Kockney koi double • Union ball valve - Free postage - New and Used
Solvent weld pipe • Kockney koi double • Union ball valve - 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
Silicone sealant 310ml arbosil - silicone, - £11.95
Arbosil professional 1081 • Silicone sealant fits • All standard sealand - Free postage - New and Used
Arbosil professional 1081 • Silicone sealant fits • All standard sealand - Free postage - New and Used
Jebao jecod faf 2023 - jebao, - £29.91
Clip filter cage • This pump has • New 2023 design - Free postage - New and Used
Clip filter cage • This pump has • New 2023 design - Free postage - New and Used
Bio plas mega - bio-plas, mega-flo - £16.49
This process which • Removes harmful ammonia • Nitrite from water - Free postage - New and Used
This process which • Removes harmful ammonia • Nitrite from water - Free postage - New and Used
Alfagrog e25 ceramic media - alfagrog, - £18.95
Highly porous high • Surface area makes • Natural choice colonisation - Free postage - New and Used
Highly porous high • Surface area makes • Natural choice colonisation - Free postage - New and Used
Filter floss wool foam media - filter, - £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
Koi quarantine tank - koi, tank/bowl - £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
Pond tank liner connector koi - tank, - £13.95
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
Solvent weld inch flanged - solvent, 4" - £10.99
Quality flanged tank • Connector stainless steel • Fits solvent weld - Free postage - New and Used
Quality flanged tank • Connector stainless steel • Fits solvent weld - Free postage - New and Used
Square cut filter grids - x, - £14.50
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
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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 £2.75, while premium listings can reach £449.99 — giving you a wide budget spread to work with. The average price of £109.83 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.