Koi fish
Koi fish for sale on Ireland's largest auction and classifieds sites
Herons premium wheatgerm - herons, - £5.39
Japanese koi goldfish • Other pond fish • Improves digestion liver - Free postage - New and Used
Japanese koi goldfish • Other pond fish • Improves digestion liver - Free postage - New and Used
High strenght - 12, - £43.00
Pu18 produces tough • Elastic seals joints • Excellent adhesion characteristics - Free postage - New and Used
Pu18 produces tough • Elastic seals joints • Excellent adhesion characteristics - Free postage - New and Used
Fish fuel pond flake litre - fuel, - £12.99
Fish fuel pond • Flake complete pet • Including koi orfe - Free postage - New and Used
Fish fuel pond • Flake complete pet • Including koi orfe - Free postage - New and Used
Ssuv stainless steel - ssuv, - £129.99
All pond solutions • Ssuv clarifiers utilise • Efficient stainless steel - Free postage - New and Used
All pond solutions • Ssuv clarifiers utilise • Efficient stainless steel - Free postage - New and Used
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Tetra pond wheatgerm winter - pond, - £14.45
Floating food sticks • All pond fish • Low water temperatures - Free postage - New and Used
Floating food sticks • All pond fish • Low water temperatures - Free postage - New and Used
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48 listings · from £2.8 · avg £42.79
⚠️ These listings were last updated more than 100 days ago.
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Browse 48 koi fish listings currently in our index. Prices range from £2.8 to £307.49, with an average of £42.79. 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 fish →
Pond thermometer koi - pond, - £6.25
Lcd screen easy • 25mm 12mm accuracy • Switch power 1.5v - Free postage - New and Used
Lcd screen easy • 25mm 12mm accuracy • Switch power 1.5v - Free postage - New and Used
Cloverleaf blanket answer - blanket, - £269.99
Into can bucket • Litres pond water • Easy application simply - Free postage - New and Used
Into can bucket • Litres pond water • Easy application simply - Free postage - New and Used
Herons winter mix pellets - herons, - £4.40
Leavening agent japanese • Koi goldfish other • Pond fish attributes - Free postage - New and Used
Leavening agent japanese • Koi goldfish other • Pond fish attributes - Free postage - New and Used
Wheatgerm winter pond - wheatgerm, - £11.85
Wheatgerm best food • Feed pond fish • During colder months - Free postage - New and Used
Wheatgerm best food • Feed pond fish • During colder months - Free postage - New and Used
Herons winter pond - pellets, 3mm - £2.80
Other pond fish • Manganese leavening agent • Premium floating pellets - Free postage - New and Used
Other pond fish • Manganese leavening agent • Premium floating pellets - Free postage - New and Used
Tetra pond wheatgerm winter - tetra, - £31.50
Tetra pond wheatgerm • Food sticks provide • Ideal nutrition your - Free postage - New and Used
Tetra pond wheatgerm • Food sticks provide • Ideal nutrition your - Free postage - New and Used
Herons pond food koi carp - pond, - £65.80
Japanese koi other • Pond fish diversified • Formula makesherons sturgeon - Free postage - New and Used
Japanese koi other • Pond fish diversified • Formula makesherons sturgeon - Free postage - New and Used
Herons koi trio pellets - pellets, 3mm - £34.90
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
Pond liner waterproof heavy - liner, - £14.00
Our high quality200gsm • Pond liners are • Forexceptional durability long - Free postage - New and Used
Our high quality200gsm • Pond liners are • Forexceptional durability long - Free postage - New and Used
Labs medikoi wheatgerm - nt, - £32.99
High quality ingredients • Including garlic help • Encourage your overwintering - Free postage - New and Used
High quality ingredients • Including garlic help • Encourage your overwintering - Free postage - New and Used
12x soudal high strength - soudal, - £39.50
Soudaflex high quality • One component polyurethane • Modulus wide range - Free postage - New and Used
Soudaflex high quality • One component polyurethane • Modulus wide range - Free postage - New and Used
Tetra pond floating fish food - fish, - £33.99
Tetra pond sticks • Floating fish food • Friend sturgeon sterlet - Free postage - New and Used
Tetra pond sticks • Floating fish food • Friend sturgeon sterlet - Free postage - New and Used
Kockney koi wheatgerm - koi, sinking - £20.95
Yamitsu kockney koi • Wheatgerm winter sinking • Pellets low protein - Free postage - New and Used
Yamitsu kockney koi • Wheatgerm winter sinking • Pellets low protein - Free postage - New and Used
Herons pond sticks - pond, 12.5l - £16.80
Pond coldwater fish • Koi carp other • Spirulina intensify colours - Free postage - New and Used
Pond coldwater fish • Koi carp other • Spirulina intensify colours - Free postage - New and Used
Nishikoi growth koi - growth, fish - £93.95
Nishikoi growth fish • 650g jar 750g • Food pellet - Free postage - New and Used
Nishikoi growth fish • 650g jar 750g • Food pellet - Free postage - New and Used
Nishikoi staple fish pellet - nishikoi, - £45.99
These high quality • Floating pellets are • Enriched essential vitamins - Free postage - New and Used
These high quality • Floating pellets are • Enriched essential vitamins - Free postage - New and Used
Evolution aqua wheatgerm - evolution, koi - £40.50
Evolution aqua wheatgerm • Pellets are high • Quality year round - Free postage - New and Used
Evolution aqua wheatgerm • Pellets are high • Quality year round - Free postage - New and Used
Herons koi trio sticks 1kg - herons, - £7.90
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
Kockney koi superior - superior, fish - £34.95
Kockney koi yamitsu • Superior mix floating • Pond fish contains - Free postage - New and Used
Kockney koi yamitsu • Superior mix floating • Pond fish contains - Free postage - New and Used
Labs medi koi probiotic - labs, medi-koi - £29.95
Not only does • Food provide beneficial • Probiotic bacteria koi - Free postage - New and Used
Not only does • Food provide beneficial • Probiotic bacteria koi - Free postage - New and Used
Herons premium koi flakes pond - premium, - £3.40
Koi carp other • Pond coldwater fish • Diversified formula makesherons - Free postage - New and Used
Koi carp other • Pond coldwater fish • Diversified formula makesherons - Free postage - New and Used
Square pond planting - square, baskets - £13.59
Square pond planting • Baskets they are • Specially manufactured allow - Free postage - New and Used
Square pond planting • Baskets they are • Specially manufactured allow - Free postage - New and Used
High strength polyurethane - high, - £11.99
Pu18 produces tough • Elastic seals joints • Excellent adhesion characteristics - Free postage - New and Used
Pu18 produces tough • Elastic seals joints • Excellent adhesion characteristics - Free postage - New and Used
Aquarium pond filter wool - aquarium, - £13.99
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
Tetra variety sticks pond - sticks, - £14.80
Tetra pond variety • Below stop feeding • Wheatgerm sticks general - Free postage - New and Used
Tetra pond variety • Below stop feeding • Wheatgerm sticks general - 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
Tetra pond variety sticks - pond, - £9.99
Tetra pond variety • Floating sticks are • Complete food mix - Free postage - New and Used
Tetra pond variety • Floating sticks are • Complete food mix - Free postage - New and Used
Kockney koi yamitsu wheatgerm - koi, - £19.95
Kockney koi wheatgerm • Food sold per • Bag either floating - Free postage - New and Used
Kockney koi wheatgerm • Food sold per • Bag either floating - Free postage - New and Used
Koi goldfish pond fish - fish, food - £10.99
All cold water • Pond fish especially • Koi goldfish orfe - Free postage - New and Used
All cold water • Pond fish especially • Koi goldfish orfe - Free postage - New and Used
Herons pond fish - herons, - £54.80
Koi carp other • Pond coldwater fish • Variants 100 natural - Free postage - New and Used
Koi carp other • Pond coldwater fish • Variants 100 natural - Free postage - New and Used
Freeze dried fish food - freeze, - £19.65
Premium freeze dried • Tubifex cubes 100 • Drying process also - Free postage - New and Used
Premium freeze dried • Tubifex cubes 100 • Drying process also - Free postage - New and Used
Labs mediclay algae - nt, clear - £89.95
Ideal regular pond • Maintenance during periods • Fish stress recovery - Free postage - New and Used
Ideal regular pond • Maintenance during periods • Fish stress recovery - Free postage - New and Used
Koi food pellets colour - koi, - £81.82
Your koi • This 10kg pack • Food pellets dajiwa - Free postage - New and Used
Your koi • This 10kg pack • Food pellets dajiwa - Free postage - New and Used
Protein koi rapid growth - protein, - £15.99
Rapid growth koi • Pond pellets 1kg • Have been specially - Free postage - New and Used
Rapid growth koi • Pond pellets 1kg • Have been specially - Free postage - New and Used
Jebao submersible pond pump - jebao, - £26.95
Jebao ultra violet • Clarifier uvc green • Algae water garden - Free postage - New and Used
Jebao ultra violet • Clarifier uvc green • Algae water garden - Free postage - New and Used
Herons koi trio sticks - herons, - £59.90
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
Japanese koi other • Pond fish improves • Digestion liver function - Free postage - New and Used
2kg premium wild bird dried - 2kg, - £13.76
- Free postage - New and Used
- Free postage - New and Used
Solvent weld pipe - pipe, koi - £16.99
Pmf koi aquatics - Free postage - New and Used
Pmf koi aquatics - Free postage - New and Used
Professional fish transport - professional, - £21.95
Japanese koi have • Pond related products • Additives ultra violet - Free postage - New and Used
Japanese koi have • Pond related products • Additives ultra violet - Free postage - New and Used
10kg professional koi pellets - 10kg, - £34.99
Our complete premium • High protein floating • Pellets provide staple - Free postage - New and Used
Our complete premium • High protein floating • Pellets provide staple - Free postage - New and Used
Pet friend wheatgerm pellet - pet, - £15.99
Pet friend 5mm • Wheatgerm pellets are • Ideal food feeding - Free postage - New and Used
Pet friend 5mm • Wheatgerm pellets are • Ideal food feeding - Free postage - New and Used
Tetra pond wheatgerm sticks - pond, - £19.99
Tetra pond wheatgerm • Floating sticks are • Fish when water - Free postage - New and Used
Tetra pond wheatgerm • Floating sticks are • Fish when water - Free postage - New and Used
Stainless steel koi fish pond - koi, - £129.99
All pond solutions • Steriliser product instruction • Ssuv clarifiers utilise - Free postage - New and Used
All pond solutions • Steriliser product instruction • Ssuv clarifiers utilise - Free postage - New and Used
Try this: large aquarium fish tank | malawi cichlid food | pleco | tropical catfish | v2 protein skimmer | jbl proflora | juwel vision 180 | fluval heaters | bubble magus | fish tank filters
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Everything you need to know about koi fish
Whether you are looking for a brand-new or second-hand koi fish, 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 £2.8, while premium listings can reach £307.49 — giving you a wide budget spread to work with. The average price of £42.79 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.