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Saltwater tank

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

Home / Fish & Aquarium / Saltwater tank refurbished & used for sale | For Sale UK
Salifert test kit marine - -,

Salifert test kit marine - -,

£9.99 · Buy It Now

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Saltwater tank equipment - ,

Saltwater tank equipment - ,

£78.70 · Buy It Now

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Funktion freshwater - funktion,

Funktion freshwater - funktion,

£84.99 · Buy It Now

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Smart automatic top off - smart,

Smart automatic top off - smart,

£64.97 · Buy It Now

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Api 5in1 aquarium water test - api,

Api 5in1 aquarium water test - api,

£6.95 · Buy It Now

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Api master test - api, fresh

Api master test - api, fresh

£29.99 · Buy It Now

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Salifert marine all one - salifert, in

Salifert marine all one - salifert, in

£29.95 · Buy It Now

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Internal aquarium fish - internal, tank

Internal aquarium fish - internal, tank

£16.99 · Buy It Now

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Tmc salifert profi test kit - tmc,

Tmc salifert profi test kit - tmc,

£11.58 · Buy It Now

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Waterlife buffer 2 8 - waterlife, 7.2,

Waterlife buffer 2 8 - waterlife, 7.2,

£9.99 · Buy It Now

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Salifert profi test kit - salifert,

Salifert profi test kit - salifert,

£34.95 · Buy It Now

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Fluval sea salt hydrometer - fluval,

Fluval sea salt hydrometer - fluval,

£9.65 · Buy It Now

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Marine aquarium glass - aquarium,

Marine aquarium glass - aquarium,

£6.99 · Buy It Now

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Led glass aquarium fish tank - glass,

Led glass aquarium fish tank - glass,

£29.95 · Buy It Now

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Acrylic small one gallon - acrylic, 1

Acrylic small one gallon - acrylic, 1

£149.63 · Buy It Now

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Marine aquarium saltwater - marine,

Marine aquarium saltwater - marine,

£39.85 · Buy It Now

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Fluval sea evo nano - nano, saltwater

Fluval sea evo nano - nano, saltwater

£159.99 · Buy It Now

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Activated carbon pellet form - carbon,

Activated carbon pellet form - carbon,

£9.49 · Buy It Now

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Api master test kit freshwater - master,

Api master test kit freshwater - master,

£28.95 · Buy It Now

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Aquaforest carbon marine - aquaforest,

Aquaforest carbon marine - aquaforest,

£15.99 · Buy It Now

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Api master saltwater test - saltwater,

Api master saltwater test - saltwater,

£29.99 · Buy It Now

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Biorb seahorses coral - seahorses,

Biorb seahorses coral - seahorses,

£21.50 · Buy It Now

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Tunze care magnet aquarium - tunze,

Tunze care magnet aquarium - tunze,

£84.35 · Buy It Now

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Aquarium samoa coral sand - aquarium, 5kg

Aquarium samoa coral sand - aquarium, 5kg

£42.95 · Buy It Now

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Biorb classic aquarium - biorb,

Biorb classic aquarium - biorb,

£215.95 · Buy It Now

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Fluval m150 submersible fish - fluval,

Fluval m150 submersible fish - fluval,

£20.99 · Buy It Now

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Hikari marine 50g sinking - marine,

Hikari marine 50g sinking - marine,

£7.95 · Buy It Now

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Biorb halo aquarium fish - biorb,

Biorb halo aquarium fish - biorb,

£239.95 · Buy It Now

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Salifert test kit - kit, marine

Salifert test kit - kit, marine

£34.95 · Buy It Now

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Coral holder high quality - coral,

Coral holder high quality - coral,

£19.34 · Buy It Now

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Aquarium fish tank - aquarium, sinking

Aquarium fish tank - aquarium, sinking

£12.83 · Buy It Now

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Salifert test kit - kit, set

Salifert test kit - kit, set

£28.99 · Buy It Now

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Salifert test kit - salifert,

Salifert test kit - salifert,

£74.90 · Buy It Now

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Salifert profi test kit for - profi,

Salifert profi test kit for - profi,

£10.25 · Buy It Now

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Salifert test kit set - salifert, marine

Salifert test kit set - salifert, marine

£74.99 · Buy It Now

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Aqua one aquarium - aquarium, tanks

Aqua one aquarium - aquarium, tanks

£1139.99 · Buy It Now

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Ha6 sealant silicone rtv - sealant,

Ha6 sealant silicone rtv - sealant,

£27.58 · Buy It Now

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Waterlife buffer 200g - waterlife,

Waterlife buffer 200g - waterlife,

£9.99 · Buy It Now

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Aquarium fish tank robot - aquarium,

Aquarium fish tank robot - aquarium,

£25.16 · Buy It Now

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Marine aquarium saltwater - aquarium,

Marine aquarium saltwater - aquarium,

£37.99 · Buy It Now

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Biorb life aquarium all - aquarium,

Biorb life aquarium all - aquarium,

£192.95 · Buy It Now

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Rr2 real reef - rr2, live

Rr2 real reef - rr2, live

£16.15 · Buy It Now

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Biorb classic 60l - biorb, white

Biorb classic 60l - biorb, white

£187.95 · Buy It Now

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Biorb loop aquarium fish - aquarium, tank

Biorb loop aquarium fish - aquarium, tank

£192.95 · Buy It Now

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Tunze comline doc protein - tunze,

Tunze comline doc protein - tunze,

£149.99 · Buy It Now

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Aqua one mariglo marine - mariglo,

Aqua one mariglo marine - mariglo,

£39.99 · 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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Saltwater salt gravimeter - saltwater,

Saltwater salt gravimeter - saltwater,

£5.51 · 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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Api saltwater marine - saltwater,

Api saltwater marine - saltwater,

£29.99 · Buy It Now

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Labs marine lab test - nt,

Labs marine lab test - nt,

£15.99 · Buy It Now

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Fluval sea ps1 protein skimmer - sea,

Fluval sea ps1 protein skimmer - sea,

£52.99 · Buy It Now

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Biorb seahorses coral - seahorses, on

Biorb seahorses coral - seahorses, on

£36.95 · Buy It Now

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Activated carbon pellet - carbon,

Activated carbon pellet - carbon,

£49.95 · Buy It Now

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Vastocean coral cutter with - coral,

Vastocean coral cutter with - coral,

£14.52 · Buy It Now

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Hanna 774 marine phosphate - hanna, hi-774

Hanna 774 marine phosphate - hanna, hi-774

£81.99 · Buy It Now

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Eheim aquastar marine - 63,

Eheim aquastar marine - 63,

£370.45 · Buy It Now

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Fauna marin red algae - marin,

Fauna marin red algae - marin,

£26.99 · Buy It Now

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Fish tank background coral - tank,

Fish tank background coral - tank,

£11.99 · Buy It Now

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Rk5 unique natural dry live - dry,

Rk5 unique natural dry live - dry,

£26.70 · Buy It Now

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Biorb barnacle sculpture - biorb,

Biorb barnacle sculpture - biorb,

£27.95 · Buy It Now

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Aquarium test strips - strips,, 7-way

Aquarium test strips - strips,, 7-way

£13.63 · Buy It Now

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Rk2 stunning dry live - rk2,

Rk2 stunning dry live - rk2,

£52.70 · 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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Biorb cube 30l - cube, aquarium

Biorb cube 30l - cube, aquarium

£169.95 · Buy It Now

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Fluval aquaplus cycle 500ml - fluval, &

Fluval aquaplus cycle 500ml - fluval, &

£24.95 · Buy It Now

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Salifert test kh kit - mg, ca

Salifert test kh kit - mg, ca

£39.99 · Buy It Now

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Oase biorb aquarium pebble - aquarium,

Oase biorb aquarium pebble - aquarium,

£12.95 · Buy It Now

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60w 100w marine - marine, aquarium

60w 100w marine - marine, aquarium

£130.75 · Buy It Now

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Fritzzyme monster 460 - fritzzyme,

Fritzzyme monster 460 - fritzzyme,

£48.99 · Buy It Now

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Rk3 unique dry tonga live - rk3, rock

Rk3 unique dry tonga live - rk3, rock

£26.70 · Buy It Now

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Api ammonia test - ammonia, liquid

Api ammonia test - ammonia, liquid

£18.99 · Buy It Now

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New led glass aquarium - new,

New led glass aquarium - new,

£39.95 · 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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Api liquid aquarium fish - liquid,

Api liquid aquarium fish - liquid,

£23.95 · Buy It Now

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Biorb oase white - biorb, sea

Biorb oase white - biorb, sea

£12.95 · Buy It Now

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Oase biorb tube 35l black - tube,

Oase biorb tube 35l black - tube,

£214.89 · Buy It Now

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Oase biorb tube aquarium fish - aquarium,

Oase biorb tube aquarium fish - aquarium,

£149.95 · Buy It Now

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Oase biorb sea whips - biorb,

Oase biorb sea whips - biorb,

£11.95 · Buy It Now

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Oase biorb plate - plate, set

Oase biorb plate - plate, set

£10.95 · Buy It Now

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Aqua one stripglo marine - one,

Aqua one stripglo marine - one,

£89.99 · Buy It Now

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Fluval aquaplus water - fluval,

Fluval aquaplus water - fluval,

£13.99 · Buy It Now

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Funktion freshwater - funktion,

Funktion freshwater - funktion,

£80.99 · Buy It Now

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Oase biorb colour - oase, coral

Oase biorb colour - oase, coral

£52.95 · Buy It Now

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Oase biorb led mcr standard - oase,

Oase biorb led mcr standard - oase,

£73.95 · Buy It Now

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Labs marine lab test - labs, kit

Labs marine lab test - labs, kit

£10.49 · Buy It Now

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Oase biorb pack - biorb,

Oase biorb pack - biorb,

£7.95 · 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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Api saltwater master test kit - saltwater,

Api saltwater master test kit - saltwater,

£27.99 · Buy It Now

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Fishdoctor alert continuous - fishdoctor,

Fishdoctor alert continuous - fishdoctor,

£12.39 · Buy It Now

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Pcs saltwater tank - 10,

Pcs saltwater tank - 10,

£15.58 · Buy It Now

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Seachem reef plus complete - plus,

Seachem reef plus complete - plus,

£19.55 · Buy It Now

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Seachem reef iodine - reef,

Seachem reef iodine - reef,

£9.79 · Buy It Now

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Api calcium aquarium salt - api,

Api calcium aquarium salt - api,

£11.65 · Buy It Now

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Bryopsis hair algae - bryopsis, treatment

Bryopsis hair algae - bryopsis, treatment

£43.67 · Buy It Now

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Seachem reef complete - seachem, marine

Seachem reef complete - seachem, marine

£79.99 · Buy It Now

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📊96 listings · from £5.51 · avg £66.17

Browse 96 saltwater tank listings currently in our index. Prices range from £5.51 to £1139.99, with an average of £66.17. 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 tank →

Try this: freshwater tropical fish | large marine fish tanks | sump refugium | aquarium glass | cylinder fish tank | clearseal tank | hailea water pump | 3 foot fish tank | 2 foot fish tank | 4ft juwel fish tank

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Everything you need to know about saltwater tank

Whether you are looking for a brand-new or second-hand saltwater 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 £5.51, while premium listings can reach £1139.99 — giving you a wide budget spread to work with. The average price of £66.17 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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