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Kockney koi solvent - koi,

Kockney koi solvent - koi,

£18.89 · Buy It Now

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1000l collapsible folding - collapsible,

1000l collapsible folding - collapsible,

£146.30 · Buy It Now

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1000l collapsible folding - 1000l,

1000l collapsible folding - 1000l,

£277.33 · Buy It Now

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Koi pond quarantine tank - quarantine,

Koi pond quarantine tank - quarantine,

£312.70 · Buy It Now

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Large quarantine tank for koi - quarantine,

Large quarantine tank for koi - quarantine,

£37.99 · Buy It Now

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Pond aquarium uv light - aquarium,

Pond aquarium uv light - aquarium,

£136.99 · Buy It Now

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Air line splitter manifold - air,

Air line splitter manifold - air,

£449.99 · Buy It Now

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Pond koi filter - koi, bio

Pond koi filter - koi, bio

£69.99 · Buy It Now

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Aquarium pond filter wool - aquarium,

Aquarium pond filter wool - aquarium,

£79.99 · Buy It Now

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Koi fish grow holding - koi, on

Koi fish grow holding - koi, on

£209.00 · Buy It Now

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Koi pond airpump fish - koi,

Koi pond airpump fish - koi,

£449.99 · Buy It Now

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Aquarium air line green - line, fish

Aquarium air line green - line, fish

£200.49 · Buy It Now

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Superfish koi fish - koi,

Superfish koi fish - koi,

£44.99 · Buy It Now

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2500l collapsible folding - collapsible,

2500l collapsible folding - collapsible,

£358.59 · Buy It Now

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Koi quarantine growing - koi, tank

Koi quarantine growing - koi, tank

£341.24 · Buy It Now

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700l collapsible folding round - collapsible,

700l collapsible folding round - collapsible,

£249.25 · Buy It Now

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Pond air pump - air,

Pond air pump - air,

£74.99 · Buy It Now

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Solvent weld flanged tank - solvent,

Solvent weld flanged tank - solvent,

£7.95 · Buy It Now

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Alfagrog pond biological - alfagrog,

Alfagrog pond biological - alfagrog,

£32.95 · Buy It Now

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Superfish koi flow pond air - superfish,

Superfish koi flow pond air - superfish,

£54.95 · Buy It Now

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Weighted suction dome - suction,

Weighted suction dome - suction,

£89.99 · Buy It Now

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Square cut filter grids - square, egg

Square cut filter grids - square, egg

£149.99 · Buy It Now

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Flanged tank liner connector - tank,

Flanged tank liner connector - tank,

£9.75 · Buy It Now

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Kockney koi undergravel filter - undergravel,

Kockney koi undergravel filter - undergravel,

£12.99 · Buy It Now

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Pressure ball valve - ball, koi

Pressure ball valve - ball, koi

£16.59 · Buy It Now

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Koi sock x 52 safe - sock,

Koi sock x 52 safe - sock,

£27.99 · Buy It Now

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Koi quarantine tank bowl for - koi,

Koi quarantine tank bowl for - koi,

£37.99 · Buy It Now

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Alfagrog e25 ceramic media - ceramic,

Alfagrog e25 ceramic media - ceramic,

£6.99 · Buy It Now

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2000l collapsible folding - 2000l,

2000l collapsible folding - 2000l,

£327.99 · Buy It Now

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Koi fish grow - koi, holding

Koi fish grow - koi, holding

£189.95 · Buy It Now

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1500l collapsible folding - 1500l,

1500l collapsible folding - 1500l,

£307.49 · Buy It Now

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Koi carp pond - carp,

Koi carp pond - carp,

£199.99 · Buy It Now

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Retro fit domed weighted - retro,

Retro fit domed weighted - retro,

£96.99 · Buy It Now

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Pond tank liner connector - pond,

Pond tank liner connector - pond,

£8.95 · Buy It Now

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3mm bloodworm floating pellets - 3mm,

3mm bloodworm floating pellets - 3mm,

£36.99 · Buy It Now

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110mm flanged tank - 110mm/4",

110mm flanged tank - 110mm/4",

£11.99 · Buy It Now

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Aquarium telescopic fish tank - telescopic,

Aquarium telescopic fish tank - telescopic,

£7.99 · Buy It Now

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Superfish koi fish pond blue - koi,

Superfish koi fish pond blue - koi,

£48.50 · Buy It Now

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Jebao submersible pond - submersible, pump

Jebao submersible pond - submersible, pump

£114.95 · Buy It Now

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Quarantine tank koi growing - quarantine,

Quarantine tank koi growing - quarantine,

£430.49 · Buy It Now

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Air diffuser disc for - 13”,

Air diffuser disc for - 13”,

£31.90 · Buy It Now

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Jebao jecod faf 2023 - jebao,

Jebao jecod faf 2023 - jebao,

£29.91 · Buy It Now

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25mm flanged tank connector - flanged,

25mm flanged tank connector - flanged,

£7.99 · Buy It Now

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Flanged tank liner connector - tank,

Flanged tank liner connector - tank,

£7.99 · Buy It Now

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Aquarium air line grey - aquarium,

Aquarium air line grey - aquarium,

£200.49 · Buy It Now

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Kockney koi tank connector 5 - connector, 1.5

Kockney koi tank connector 5 - connector, 1.5

£1.99 · Buy It Now

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Pack 5 inch - -, 1.5"

Pack 5 inch - -, 1.5"

£8.99 · Buy It Now

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Filter floss wool foam media - filter,

Filter floss wool foam media - filter,

£7.95 · Buy It Now

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Pond air pump - pond,

Pond air pump - pond,

£449.99 · Buy It Now

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110mm threaded tank - 4“/110mm,

110mm threaded tank - 4“/110mm,

£16.99 · Buy It Now

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Bio plas mega flo filter - mega-flo,

Bio plas mega flo filter - mega-flo,

£16.49 · Buy It Now

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Air stones stone - 4, blue

Air stones stone - 4, blue

£8.95 · Buy It Now

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Evolution aqua media for - aqua,

Evolution aqua media for - aqua,

£37.95 · Buy It Now

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40mm threaded tank - 40mm,

40mm threaded tank - 40mm,

£7.99 · Buy It Now

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Air line fish - line, tank

Air line fish - line, tank

£502.65 · Buy It Now

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Inch kockney koi - (56mm),

Inch kockney koi - (56mm),

£8.29 · Buy It Now

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700 ring aerator air - ring,

700 ring aerator air - ring,

£19.99 · Buy It Now

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Pond tank liner - liner, connector

Pond tank liner - liner, connector

£8.99 · Buy It Now

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55mm flanged tank - id,

55mm flanged tank - id,

£6.98 · Buy It Now

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Koi round inspection bowl - koi,

Koi round inspection bowl - koi,

£37.99 · Buy It Now

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Aqua jet 900 ring - ring, air

Aqua jet 900 ring - ring, air

£24.99 · Buy It Now

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Bottom drain ring - 9"x4",

Bottom drain ring - 9"x4",

£69.99 · Buy It Now

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Air line tube weighted - tube,

Air line tube weighted - tube,

£15.49 · Buy It Now

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Koi round inspection - koi,

Koi round inspection - koi,

£71.04 · Buy It Now

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56mm flanged tank connector - flanged,

56mm flanged tank connector - flanged,

£8.99 · Buy It Now

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Alfagrog e40 ceramic filter - e40,

Alfagrog e40 ceramic filter - e40,

£569.99 · Buy It Now

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2kg alfagrog ceramic - 2kg,

2kg alfagrog ceramic - 2kg,

£8.45 · Buy It Now

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50mm threaded tank connector - tank,

50mm threaded tank connector - tank,

£8.45 · Buy It Now

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Flanged tank connector - tank,

Flanged tank connector - tank,

£9.95 · Buy It Now

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110mm bottom drain - 110mm/4", koi

110mm bottom drain - 110mm/4", koi

£24.99 · Buy It Now

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Diamond cut filter - 1, grids

Diamond cut filter - 1, grids

£149.99 · Buy It Now

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43mm ball valve koi - 1.5"/43mm,

43mm ball valve koi - 1.5"/43mm,

£16.59 · Buy It Now

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110mm ball valve koi - 4"/110mm,

110mm ball valve koi - 4"/110mm,

£74.99 · Buy It Now

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Aqua jet 700 ring - 700,

Aqua jet 700 ring - 700,

£19.99 · Buy It Now

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Triple bar air stone - triple, diffuser

Triple bar air stone - triple, diffuser

£44.99 · Buy It Now

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Solvent weld 1 5 - solvent,

Solvent weld 1 5 - solvent,

£1.95 · Buy It Now

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40mm bulk head - 40mm,

40mm bulk head - 40mm,

£7.99 · Buy It Now

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Diamond cut filter grids - diamond,

Diamond cut filter grids - diamond,

£149.99 · Buy It Now

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2000 litre water butt koi - koi, fish

2000 litre water butt koi - koi, fish

£999.89 · Buy It Now

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Kockney koi flange - koi,

Kockney koi flange - koi,

£6.99 · Buy It Now

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Koi measuring tank blue - koi,

Koi measuring tank blue - koi,

£388.39 · Buy It Now

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Solvent weld fittings - solvent,

Solvent weld fittings - solvent,

£5.75 · Buy It Now

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Under water level pond wall

Under water level pond wall

£18.99 · Buy It Now

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Threaded tank connector - tank,

Threaded tank connector - tank,

£6.56 · Buy It Now

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Solvent weld inch - 2", flanged

Solvent weld inch - 2", flanged

£12.45 · Buy It Now

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Bsp 4 stepped hosetail - bsp,

Bsp 4 stepped hosetail - bsp,

£5.20 · Buy It Now

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Solvent weld flanged - flanged, tank

Solvent weld flanged - flanged, tank

£11.45 · Buy It Now

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Blo ring aerator air stone - aerator,

Blo ring aerator air stone - aerator,

£49.99 · Buy It Now

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Aqua sure flange - tank, liner

Aqua sure flange - tank, liner

£11.45 · Buy It Now

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Aqua jet triple bar - triple, air

Aqua jet triple bar - triple, air

£44.99 · Buy It Now

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40mm flanged tank - flanged, connector

40mm flanged tank - flanged, connector

£8.99 · Buy It Now

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Solvent weld inch - 4", flanged

Solvent weld inch - 4", flanged

£10.45 · Buy It Now

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Kintama bio filter media - bio, for

Kintama bio filter media - bio, for

£12.49 · Buy It Now

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Aquarium pond filter - pond,

Aquarium pond filter - pond,

£14.99 · Buy It Now

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Koi fiberglass quarantine - 1x,

Koi fiberglass quarantine - 1x,

£404.25 · Buy It Now

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Professional quarantine tank - professional,

Professional quarantine tank - professional,

£488.24 · Buy It Now

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📊96 listings · from £1.95 · avg £113.44

Browse 96 koi tank listings currently in our index. Prices range from £1.95 to £999.89, with an average of £113.44. 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 →

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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 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 £1.95, while premium listings can reach £999.89 — giving you a wide budget spread to work with. The average price of £113.44 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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