Koi tank
Koi tank for sale on Ireland's largest auction and classifieds sites
Kockney koi solvent - koi, weld - £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
Koi quarantine growing - koi, - £341.24
Available inblue black • 100gallon - Free postage - New and Used
Available inblue black • 100gallon - Free postage - New and Used
Pond aquarium uv light - aquarium, - £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
Air line splitter manifold - splitter, - £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
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700l collapsible folding round - 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
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48 listings · from £1.69 · avg £164.14
⚠️ These listings were last updated more than 12 days ago.
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Browse 48 koi tank listings currently in our index. Prices range from £1.69 to £496.24, with an average of £164.14. 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 tank →
Koi quarantine tank bowl for - 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
Aquarium pond filter wool - aquarium, - £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
1000l collapsible folding - collapsible, - £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
Stainless steel manifold for - stainless, - £449.99
Aco 208 30mm • 318 43mm diaphragm • Easily adjust flow - Free postage - New and Used
Aco 208 30mm • 318 43mm diaphragm • Easily adjust flow - Free postage - New and Used
Pond koi filter - filter, cell - £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
Koi carp pond - carp, - £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
Koi sock x - sock, 52" - £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
Large quarantine tank for - 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
Koi pond quarantine - 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 fish grow - fish, holding - £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
Koi pond fiba glass - koi, 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
Pond air pump - pump, koi - £49.99
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
Kockney koi tank connector - kockney, - £1.75
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
Koi fiberglass quarantine - 1x, - £404.25
Available black 525 • Ltr long wide • 24.5 deep - Free postage - New and Used
Available black 525 • Ltr long wide • 24.5 deep - Free postage - New and Used
Square cut filter - grids, egg - £124.99
Multi grid clip • Together filter support • Grids black quantity - Free postage - New and Used
Multi grid clip • Together filter support • Grids black quantity - Free postage - New and Used
Koi pond airpump - pond, - £174.99
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
Aquarium air line - line, green - £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
2000l collapsible folding - 2000l, - £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
Solvent weld threaded tank - solvent, - £4.99
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
Koi measuring tank blue - measuring, - £388.39
Vital use water • From pond prevent • Temperature shock consequently - Free postage - New and Used
Vital use water • From pond prevent • Temperature shock consequently - Free postage - New and Used
110mm threaded tank - 4“/110mm, - £16.99
Threaded tank connector • Has been work • Conjunction 110mm solvent - Free postage - New and Used
Threaded tank connector • Has been work • Conjunction 110mm solvent - Free postage - New and Used
Diamond cut filter grids - diamond, - £149.99
Multi grid clip • Together filter support • Grids black quantity - Free postage - New and Used
Multi grid clip • Together filter support • Grids black quantity - Free postage - New and Used
Retro fit domed weighted - 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
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
Silicone sealant 310ml arbosil - sealant, - £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
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
Quarantine tank koi growing - tank, - £430.49
- Free postage - New and Used
- Free postage - New and Used
Filter floss wool foam - filter, - £9.89
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
Threaded tank connector - tank, 1.5" - £14.18
This plastic fitting • Kockney koi threaded • Tank connector kk158 - Free postage - New and Used
This plastic fitting • Kockney koi threaded • Tank connector kk158 - 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
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
Air line fish tank windscreen - fish, - £496.24
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
Alfagrog pond biological - alfagrog, - £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
Koi holding quarantine - koi, grow - £189.00
Why choose our • 200l koi holding • Grow tank young - Free postage - New and Used
Why choose our • 200l koi holding • Grow tank young - Free postage - New and Used
Oase pondovac vacuum - 2x, - £120.00
Item oase pondovac • Vacuum cleaner hoover • Original rrp 200 - Free postage - New and Used
Item oase pondovac • Vacuum cleaner hoover • Original rrp 200 - Free postage - New and Used
Alfagrog e25 ceramic media - e25, - £6.09
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
Professional quarantine tank - quarantine, - £488.24
Collection best its • Large piece kit • Will fit into - Free postage - New and Used
Collection best its • Large piece kit • Will fit into - Free postage - New and Used
Flanged tank liner connector - flanged, - £7.99
Flanged tank connector • Filter joining solution • Normal note flange - Free postage - New and Used
Flanged tank connector • Filter joining solution • Normal note flange - Free postage - New and Used
Koi fish grow holding - fish, - £209.00
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
Square cut filter grids - 2, - £21.99
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
Aquarium bubbles pond - aquarium, - £4.49
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
Carp koi transport tank - transport, - £104.70
Used but perfect • Working order gang • Oxygen flow meter - Free postage - New and Used
Used but perfect • Working order gang • Oxygen flow meter - Free postage - New and Used
Superfish koi flow pond - superfish, air - £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
Try this: calibra turbo engine | waste cooking oil | land rover series overdrive | zil | tomy trackmaster train edward | piper exhaust | trianco boiler | peugeot jetforce 50cc | dalek clock | koi holding tank
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Everything you need to know about koi tank
Whether you are looking for a brand-new or second-hand koi tank, 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 £496.24 — giving you a wide budget spread to work with. The average price of £164.14 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.