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Saltwater aquarium tanks

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Saltwater aquarium tanks for sale on Ireland's largest auction and classifieds sites

Home / Lenses & Filters / Saltwater aquarium tanks refurbished & used for sale | For Sale UK
Internal aquarium fish tank - fish,

Internal aquarium fish tank - fish,

£16.99 · Buy It Now

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Funktion freshwater - d-d,

Funktion freshwater - d-d,

£92.99 · Buy It Now

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Seachem reef complete marine - reef,

Seachem reef complete marine - reef,

£79.99 · Buy It Now

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Ha6 sealant silicone rtv - sealant,

Ha6 sealant silicone rtv - sealant,

£59.99 · Buy It Now

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Aqua one aquarium - aqua,

Aqua one aquarium - aqua,

£1139.99 · Buy It Now

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Salifert test kit marine - salifert,

Salifert test kit marine - salifert,

£12.89 · Buy It Now

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Fluval sea evo 52l - fluval,

Fluval sea evo 52l - fluval,

£144.99 · Buy It Now

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Activated carbon pellet - activated,

Activated carbon pellet - activated,

£9.49 · Buy It Now

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Api 5in1 aquarium water - aquarium, test

Api 5in1 aquarium water - aquarium, test

£6.95 · Buy It Now

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Fluval sea evo nano saltwater - nano,

Fluval sea evo nano saltwater - nano,

£159.99 · Buy It Now

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Salifert profi test kit range - kit,

Salifert profi test kit range - kit,

£10.50 · Buy It Now

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Aquarium samoa coral - coral, 5kg

Aquarium samoa coral - coral, 5kg

£42.95 · Buy It Now

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Funktion freshwater - funktion,

Funktion freshwater - funktion,

£80.99 · Buy It Now

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Salifert test kit - set, marine

Salifert test kit - set, marine

£74.99 · Buy It Now

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Marine aquarium saltwater - aquarium,

Marine aquarium saltwater - aquarium,

£39.85 · Buy It Now

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Acrylic small one gallon - small, in

Acrylic small one gallon - small, in

£150.08 · Buy It Now

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Api master test kit - master, freshwater

Api master test kit - master, freshwater

£23.95 · Buy It Now

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Aquaforest carbon marine - carbon, 1l

Aquaforest carbon marine - carbon, 1l

£15.99 · Buy It Now

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Biorb treasure chest sculpture - biorb,

Biorb treasure chest sculpture - biorb,

£29.95 · Buy It Now

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Aqua one aquarium - aqua, fish

Aqua one aquarium - aqua, fish

£911.99 · Buy It Now

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Hikari marine 50g - s,

Hikari marine 50g - s,

£7.95 · Buy It Now

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Salifert marine all one - marine,

Salifert marine all one - marine,

£29.95 · Buy It Now

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Biorb seahorses coral - biorb,

Biorb seahorses coral - biorb,

£21.50 · Buy It Now

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Aqua one stripglo marine led - stripglo,

Aqua one stripglo marine led - stripglo,

£53.99 · Buy It Now

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Aquarium fish tank sinking - tank,

Aquarium fish tank sinking - tank,

£12.83 · Buy It Now

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Fluval m150 submersible - m150,

Fluval m150 submersible - m150,

£20.99 · Buy It Now

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Salifert profi test kit for - ph,

Salifert profi test kit for - ph,

£10.25 · Buy It Now

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Salifert test kit set marine - kit,

Salifert test kit set marine - kit,

£34.95 · Buy It Now

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Salifert test kit set marine - salifert,

Salifert test kit set marine - salifert,

£28.99 · Buy It Now

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Saltwater tank equipment - ,

Saltwater tank equipment - ,

£78.70 · Buy It Now

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Led glass aquarium fish tank - led,

Led glass aquarium fish tank - led,

£29.95 · Buy It Now

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Salifert test kh kit - salifert,

Salifert test kh kit - salifert,

£39.99 · Buy It Now

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Hygger hg163 aquarium fish - hygger,

Hygger hg163 aquarium fish - hygger,

£29.99 · Buy It Now

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Pack ha6 marine - 3,

Pack ha6 marine - 3,

£12.28 · Buy It Now

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Smart automatic top - automatic, off

Smart automatic top - automatic, off

£60.97 · Buy It Now

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Api liquid aquarium fish - api,

Api liquid aquarium fish - api,

£23.95 · Buy It Now

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Spectrum prdi reverse - spectrum, prdi-20

Spectrum prdi reverse - spectrum, prdi-20

£25.00 · Buy It Now

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Tunze care magnet - tunze, aquarium

Tunze care magnet - tunze, aquarium

£99.95 · Buy It Now

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Saltwater fish and reef - reef, tanks

Saltwater fish and reef - reef, tanks

£17.94 · Buy It Now

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Nano tech bio spheres - nano-tech, bio-spheres

Nano tech bio spheres - nano-tech, bio-spheres

£123.06 · Buy It Now

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Waterlife buffer 200g - 8.3,

Waterlife buffer 200g - 8.3,

£9.99 · Buy It Now

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Oase biorb water treatments - biorb,

Oase biorb water treatments - biorb,

£11.49 · Buy It Now

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Biorb loop aquarium fish tank - aquarium,

Biorb loop aquarium fish tank - aquarium,

£214.95 · Buy It Now

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Biorb classic aquarium - biorb,

Biorb classic aquarium - biorb,

£129.95 · Buy It Now

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Biorb life 45l white aquarium - biorb,

Biorb life 45l white aquarium - biorb,

£199.95 · Buy It Now

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Activated carbon pellet form - activated,

Activated carbon pellet form - activated,

£49.95 · Buy It Now

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Biorb life aquarium all - life,

Biorb life aquarium all - life,

£209.95 · Buy It Now

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Api master saltwater test kit - api,

Api master saltwater test kit - api,

£29.99 · Buy It Now

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Oase biorb aquarium pebble - biorb,

Oase biorb aquarium pebble - biorb,

£12.95 · Buy It Now

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Oase biorb led - mcr, standard

Oase biorb led - mcr, standard

£72.95 · Buy It Now

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Seachem carbonate complete - seachem,

Seachem carbonate complete - seachem,

£12.37 · Buy It Now

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Biorb barnacle sculpture - biorb,

Biorb barnacle sculpture - biorb,

£27.95 · Buy It Now

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Fluval m50 submersible fish - fluval,

Fluval m50 submersible fish - fluval,

£20.49 · Buy It Now

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Pawfly saltwater aquarium - w,

Pawfly saltwater aquarium - w,

£39.46 · Buy It Now

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Salifert test kit set marine - salifert,

Salifert test kit set marine - salifert,

£74.90 · Buy It Now

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Labs marine lab test kit - marine,

Labs marine lab test kit - marine,

£15.99 · Buy It Now

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Oase biorb colour coral - oase,

Oase biorb colour coral - oase,

£52.95 · Buy It Now

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White quartz aquarium - white,

White quartz aquarium - white,

£3.99 · Buy It Now

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Biorb classic 60l white - 60l,

Biorb classic 60l white - 60l,

£187.95 · Buy It Now

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Api calcium aquarium salt - calcium,

Api calcium aquarium salt - calcium,

£11.65 · Buy It Now

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Oase biorb plate - biorb, set

Oase biorb plate - biorb, set

£10.95 · Buy It Now

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Fluval sea ps1 protein - fluval,

Fluval sea ps1 protein - fluval,

£52.99 · Buy It Now

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Biorb seahorses coral - seahorses, on

Biorb seahorses coral - seahorses, on

£42.95 · Buy It Now

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Api saltwater marine aquarium - api,

Api saltwater marine aquarium - api,

£29.99 · Buy It Now

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Fritzzyme monster 460 - fritzzyme,

Fritzzyme monster 460 - fritzzyme,

£48.99 · Buy It Now

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Activated carbon pellet form - activated,

Activated carbon pellet form - activated,

£16.95 · Buy It Now

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Oase biorb pack seahorse - 3,

Oase biorb pack seahorse - 3,

£14.89 · Buy It Now

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Eheim aquastar marine - aquastar, 63

Eheim aquastar marine - aquastar, 63

£389.95 · Buy It Now

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60w 100w marine aquarium - marine,

60w 100w marine aquarium - marine,

£101.75 · Buy It Now

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Tunze comline doc protein - comline,

Tunze comline doc protein - comline,

£149.99 · Buy It Now

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Triton icp oes seawater - triton, icp-oes

Triton icp oes seawater - triton, icp-oes

£33.11 · Buy It Now

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Biorb halo aquarium fish tank - aquarium,

Biorb halo aquarium fish tank - aquarium,

£202.95 · Buy It Now

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Aquarium test strips way - aquarium, 7-way

Aquarium test strips way - aquarium, 7-way

£13.63 · Buy It Now

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Biorb amazonas root sculpture - biorb,

Biorb amazonas root sculpture - biorb,

£12.95 · Buy It Now

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Bond ha6 rtv - ha6, water

Bond ha6 rtv - ha6, water

£7.85 · Buy It Now

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Api aquarium water test - api,

Api aquarium water test - api,

£7.49 · Buy It Now

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Oase biorb sea - oase, 3

Oase biorb sea - oase, 3

£11.95 · Buy It Now

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Biorb oase white sea lily - white,

Biorb oase white sea lily - white,

£12.95 · Buy It Now

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Aquarium fish tank - tank, sinking

Aquarium fish tank - tank, sinking

£15.65 · Buy It Now

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Oase biorb tube 35l - biorb,

Oase biorb tube 35l - biorb,

£214.89 · Buy It Now

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Artificial silicone fish - silicone,

Artificial silicone fish - silicone,

£5.80 · Buy It Now

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Aqua one mariglo marine - aqua,

Aqua one mariglo marine - aqua,

£39.99 · Buy It Now

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Marine aquarium saltwater - marine,

Marine aquarium saltwater - marine,

£37.99 · Buy It Now

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Salinity refractometer salt - salinity,

Salinity refractometer salt - salinity,

£13.99 · Buy It Now

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Biorb cube 30l aquarium clear - cube,

Biorb cube 30l aquarium clear - cube,

£169.95 · Buy It Now

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Activated carbon pellet form - activated,

Activated carbon pellet form - activated,

£9.49 · Buy It Now

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Oase biorb colour ball - biorb,

Oase biorb colour ball - biorb,

£12.95 · Buy It Now

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Aquarium decoration ship boat - aquarium,

Aquarium decoration ship boat - aquarium,

£12.02 · Buy It Now

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Aquarium fish tank buddha - fish,

Aquarium fish tank buddha - fish,

£22.85 · Buy It Now

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Eden gravel vacuum cleaner - 60,

Eden gravel vacuum cleaner - 60,

£42.95 · Buy It Now

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Pcs saltwater tank - 10,

Pcs saltwater tank - 10,

£14.22 · Buy It Now

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Non toxic amber aquarium sand - amber,

Non toxic amber aquarium sand - amber,

£8.99 · Buy It Now

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Biorb easy plant aquatic - easy,

Biorb easy plant aquatic - easy,

£16.95 · Buy It Now

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Juwel super compact poly - super,

Juwel super compact poly - super,

£16.99 · Buy It Now

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Auto water filler - auto,

Auto water filler - auto,

£16.37 · Buy It Now

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Aquarium saltwater salinity - aquarium,

Aquarium saltwater salinity - aquarium,

£85.50 · Buy It Now

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📊96 listings · from £3.99 · avg £74.77

Browse 96 saltwater aquarium tanks listings currently in our index. Prices range from £3.99 to £1139.99, with an average of £74.77. 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 saltwater aquarium tanks →

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Everything you need to know about saltwater aquarium tanks

Whether you are looking for a brand-new or second-hand saltwater aquarium tanks, 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 £3.99, while premium listings can reach £1139.99 — giving you a wide budget spread to work with. The average price of £74.77 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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