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Saltwater tank

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Saltwater tank for sale on largest auction and classifieds sites

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

Internal aquarium fish tank - fish,

£16.99
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Saltwater tank equipment - ,

Saltwater tank equipment - ,

£78.70
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Led glass aquarium - glass, fish

Led glass aquarium - glass, fish

£29.95
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Fluval aquaplus water - fluval,

Fluval aquaplus water - fluval,

£12.65
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Salifert test kit - salifert,

Salifert test kit - salifert,

£9.99
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Api 5in1 aquarium water - 5in1,

Api 5in1 aquarium water - 5in1,

£7.99
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Protein skimmer for marine - protein,

Protein skimmer for marine - protein,

£18.55
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Api master test - test, fresh

Api master test - test, fresh

£34.99
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Fluval sea evo nano saltwater - nano,

Fluval sea evo nano saltwater - nano,

£159.99
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Fluval m150 submersible - fluval, fish

Fluval m150 submersible - fluval, fish

£20.99
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Fluval sea salt - sea, hydrometer

Fluval sea salt - sea, hydrometer

£9.65
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Fluval sea evo - evo, marine

Fluval sea evo - evo, marine

£144.99
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Salifert profi test - salifert, range

Salifert profi test - salifert, range

£34.95
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Smart wave maker - wave,

Smart wave maker - wave,

£93.67
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Aquarium shipwreck ornament - aquarium,

Aquarium shipwreck ornament - aquarium,

£13.99
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Tunze comline doc protein - comline,

Tunze comline doc protein - comline,

£149.99
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Activated carbon pellet form - activated,

Activated carbon pellet form - activated,

£49.95
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Hygger ocean glow marine salt - ocean,

Hygger ocean glow marine salt - ocean,

£16.15
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Waterlife buffer 2 - 6.5,, 7.2,

Waterlife buffer 2 - 6.5,, 7.2,

£9.99
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Marine aquarium glass - aquarium,

Marine aquarium glass - aquarium,

£6.99
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Funktion freshwater - funktion,

Funktion freshwater - funktion,

£84.99
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Smart automatic top - automatic, off

Smart automatic top - automatic, off

£54.97
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Fish tank house ornament - house,

Fish tank house ornament - house,

£13.82
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Tunze care magnet aquarium - care,

Tunze care magnet aquarium - care,

£84.35
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Aquarium samoa coral - samoa, 5kg

Aquarium samoa coral - samoa, 5kg

£42.95
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Api liquid aquarium - liquid, fish

Api liquid aquarium - liquid, fish

£23.95
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Tmc salifert profi test kit - tmc,

Tmc salifert profi test kit - tmc,

£11.58
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Fauna marin red algae - fauna, fm

Fauna marin red algae - fauna, fm

£26.99
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Coral holder high - coral, holder,

Coral holder high - coral, holder,

£19.34
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Aquarium fish tank - aquarium, sinking

Aquarium fish tank - aquarium, sinking

£12.83
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Aquameester 450l hydro - aquameester, 450l/h

Aquameester 450l hydro - aquameester, 450l/h

£12.39
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Api ammonia test kit liquid - ammonia,

Api ammonia test kit liquid - ammonia,

£18.99
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Salifert test kit set - kit,

Salifert test kit set - kit,

£74.99
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Pl4 real reef - pl4, live

Pl4 real reef - pl4, live

£24.10
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Activated carbon pellet - carbon, form

Activated carbon pellet - carbon, form

£9.49
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Ha6 sealant silicone rtv - sealant,

Ha6 sealant silicone rtv - sealant,

£59.99
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Biorb classic 60l white - biorb,

Biorb classic 60l white - biorb,

£187.95
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Aqua one aquarium fish - one,

Aqua one aquarium fish - one,

£1139.99
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Aquarium led light - led, rf

Aquarium led light - led, rf

£77.65
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Printed aquarium cave - 3d,

Printed aquarium cave - 3d,

£11.88
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Api master test kit freshwater - master,

Api master test kit freshwater - master,

£28.95
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Salifert marine all one - salifert,

Salifert marine all one - salifert,

£29.95
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Pl5 unique shaped tonga - shaped, dry

Pl5 unique shaped tonga - shaped, dry

£21.50
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Funktion freshwater - d-d,

Funktion freshwater - d-d,

£80.99
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Aquaforest carbon marine - aquaforest, 1l

Aquaforest carbon marine - aquaforest, 1l

£15.99
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Aquarium ammonia test - ammonia, strips

Aquarium ammonia test - ammonia, strips

£11.90
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Salifert test kit set - salifert,

Salifert test kit set - salifert,

£28.99
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Hikari marine 50g sinking - hikari,

Hikari marine 50g sinking - hikari,

£8.15
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Biorb loop aquarium - fish, tank

Biorb loop aquarium - fish, tank

£182.95
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Eheim aquastar marine - eheim,

Eheim aquastar marine - eheim,

£370.45
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Biorb life aquarium all - life,

Biorb life aquarium all - life,

£159.95
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Biorb classic aquarium acrylic - biorb,

Biorb classic aquarium acrylic - biorb,

£98.95
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Salifert profi test - test, for

Salifert profi test - test, for

£10.25
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Biorb treasure chest sculpture - biorb,

Biorb treasure chest sculpture - biorb,

£29.95
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Biorb life 45l - life, aquarium

Biorb life 45l - life, aquarium

£199.95
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Salifert test kh kit - mg,

Salifert test kh kit - mg,

£39.99
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Biorb seahorse ornament - seahorse,

Biorb seahorse ornament - seahorse,

£7.95
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Fish tank background coral - fish,

Fish tank background coral - fish,

£13.99
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Glass aquarium fish - aquarium, tank

Glass aquarium fish - aquarium, tank

£25.00
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Aquarium auto top off system - auto,

Aquarium auto top off system - auto,

£7.24
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Seachem reef plus complete - reef,

Seachem reef plus complete - reef,

£10.95
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Biorb halo aquarium - biorb, fish

Biorb halo aquarium - biorb, fish

£202.95
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Eden gravel vacuum cleaner - eden,

Eden gravel vacuum cleaner - eden,

£42.95
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Saltwater salt gravimeter - saltwater,

Saltwater salt gravimeter - saltwater,

£5.51
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Aquarium ammonia test strips - ammonia,

Aquarium ammonia test strips - ammonia,

£12.25
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Activated carbon pellet - carbon, form

Activated carbon pellet - carbon, form

£16.95
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Biorb life litre - life, 60

Biorb life litre - life, 60

£345.95
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Salinity refractometer kits - salinity,

Salinity refractometer kits - salinity,

£14.39
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Aquarium test strips - aquarium,

Aquarium test strips - aquarium,

£12.55
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Fluval aquaplus 500ml - fluval,

Fluval aquaplus 500ml - fluval,

£9.80
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Led glass aquarium fish - glass, tank

Led glass aquarium fish - glass, tank

£49.50
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Salifert test kit set - salifert,

Salifert test kit set - salifert,

£34.95
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Seachem carbonate complete - seachem,

Seachem carbonate complete - seachem,

£12.37
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Api saltwater marine aquarium - saltwater,

Api saltwater marine aquarium - saltwater,

£29.99
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Oase biorb tube - oase,

Oase biorb tube - oase,

£184.89
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Biorb oase white sea - biorb,

Biorb oase white sea - biorb,

£12.95
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Api master saltwater test kit - master,

Api master saltwater test kit - master,

£29.99
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Aquarium fish tank - 3, 1

Aquarium fish tank - 3, 1

£10.85
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Protein skimmer for - protein,

Protein skimmer for - protein,

£18.55
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Mini float valve - valve, white

Mini float valve - valve, white

£5.04
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Oase biorb water treatments - biorb,

Oase biorb water treatments - biorb,

£10.95
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Aquarium silence strip - aquarium, silent

Aquarium silence strip - aquarium, silent

£5.82
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Salifert test kit set marine - set,

Salifert test kit set marine - set,

£74.90
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Aquarium decoration ship boat - aquarium,

Aquarium decoration ship boat - aquarium,

£11.44
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New led glass aquarium fish - glass,

New led glass aquarium fish - glass,

£39.95
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300l internal aquarium - internal,

300l internal aquarium - internal,

£13.99
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Fluval aquaplus cycle - aquaplus, &

Fluval aquaplus cycle - aquaplus, &

£24.95
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Vastocean coral cutter with - coral,

Vastocean coral cutter with - coral,

£14.52
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Fluval m50 submersible fish - submersible,

Fluval m50 submersible fish - submersible,

£20.49
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Biorb classic 60l black - 60l,

Biorb classic 60l black - 60l,

£187.95
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Aquarium water test kit - 9-in-1,

Aquarium water test kit - 9-in-1,

£9.34
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Durable piece 180 - durable, 5-piece

Durable piece 180 - durable, 5-piece

£12.99
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For saltwater tank - tank, coral

For saltwater tank - tank, coral

£11.85
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Liquid water level sensor - water,

Liquid water level sensor - water,

£2.54
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Aquarium sand natural - aquarium,

Aquarium sand natural - aquarium,

£45.59
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Resin aquarium shrimp - aquarium,

Resin aquarium shrimp - aquarium,

£10.99
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📊96 listings · from £2.54 · avg £60.93
⚠️ These listings were last updated more than 22 days ago. Search for fresh listings

Browse 96 saltwater tank listings currently in our index. Prices range from £2.54 to £1139.99, with an average of £60.93. 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 →

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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 £2.54, while premium listings can reach £1139.99 — giving you a wide budget spread to work with. The average price of £60.93 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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