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Saltwater tank

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Saltwater tank for sale on largest auction and classifieds sites

Home / Lighting & Hoods / Saltwater tank refurbished & used for sale | For Sale UK
Mars aqua marine - mars, fish

Mars aqua marine - mars, fish

£73.50
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Smart bluetooth app control - bluetooth,

Smart bluetooth app control - bluetooth,

£95.00
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Fluval sea evo - fluval,

Fluval sea evo - fluval,

£144.99
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Led glass aquarium fish - aquarium, tank

Led glass aquarium fish - aquarium, tank

£29.95
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Salifert test kit - test, marine

Salifert test kit - test, marine

£12.89
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Mini float valve white auto - mini,

Mini float valve white auto - mini,

£5.04
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Aquavito 125 reef protein - aquavito,

Aquavito 125 reef protein - aquavito,

£100.00
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Tmc salifert profi test - profi, kit

Tmc salifert profi test - profi, kit

£12.19
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Fluval m150 submersible - submersible, fish

Fluval m150 submersible - submersible, fish

£20.99
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Salifert marine all one - in,

Salifert marine all one - in,

£29.95
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Funktion freshwater - d-d,

Funktion freshwater - d-d,

£127.99
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Fluval sea evo nano saltwater - fluval,

Fluval sea evo nano saltwater - fluval,

£159.99
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Salifert profi test kit - profi, range

Salifert profi test kit - profi, range

£12.95
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Holding tank box - holding, pump

Holding tank box - holding, pump

£101.78
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Tunze comline doc protein - tunze,

Tunze comline doc protein - tunze,

£149.99
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Large aquarium cave hide - aquarium,

Large aquarium cave hide - aquarium,

£37.99
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Rsk1 red sea - sea, rsk

Rsk1 red sea - sea, rsk

£156.70
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Marine aquarium glass - aquarium,

Marine aquarium glass - aquarium,

£6.99
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Activated carbon pellet - pellet, form

Activated carbon pellet - pellet, form

£9.49
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Fluval sea salt - fluval, hydrometer

Fluval sea salt - fluval, hydrometer

£9.65
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Api master test kits - api,

Api master test kits - api,

£30.45
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Saltwater salt gravimeter - saltwater,

Saltwater salt gravimeter - saltwater,

£5.99
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Dragon breath macroalgae - dragon's,

Dragon breath macroalgae - dragon's,

£26.70
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Api master saltwater test kit - api,

Api master saltwater test kit - api,

£29.99
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Aquaforest carbon marine - carbon, 1l

Aquaforest carbon marine - carbon, 1l

£15.99
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Funktion freshwater - d-d,

Funktion freshwater - d-d,

£89.99
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Hikari marine 50g sinking - hikari, s

Hikari marine 50g sinking - hikari, s

£8.25
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Waterlife buffer 2 - 7.2,, 8.3

Waterlife buffer 2 - 7.2,, 8.3

£9.99
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Api ammonia test kit - test, liquid

Api ammonia test kit - test, liquid

£18.99
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Smart bluetooth app - bluetooth, control

Smart bluetooth app - bluetooth, control

£130.99
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Aquameester 450l hydro pump - aquameester, 450l/h

Aquameester 450l hydro pump - aquameester, 450l/h

£12.39
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Smart wave maker with lcd - with,

Smart wave maker with lcd - with,

£95.17
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Activated carbon pellet - pellet, form

Activated carbon pellet - pellet, form

£49.95
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Salifert profi test - test, for

Salifert profi test - test, for

£10.25
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Salifert test kit - salifert, set

Salifert test kit - salifert, set

£28.99
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Fluval m50 submersible - fluval, fish

Fluval m50 submersible - fluval, fish

£20.49
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Oase biorb tube - aquarium, fish

Oase biorb tube - aquarium, fish

£139.95
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Eheim aquastar marine - eheim,

Eheim aquastar marine - eheim,

£389.95
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Fluval aquaplus 500ml - fluval,

Fluval aquaplus 500ml - fluval,

£9.80
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Aquarium cave set fish - set,

Aquarium cave set fish - set,

£22.95
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Api 5in1 aquarium - 5in1, water

Api 5in1 aquarium - 5in1, water

£7.99
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Activated carbon pellet - carbon,

Activated carbon pellet - carbon,

£39.75
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Reef zlements icp saltwater - zlements,

Reef zlements icp saltwater - zlements,

£59.99
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Biorb amazonas root sculpture - biorb,

Biorb amazonas root sculpture - biorb,

£11.95
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Dipstik aquarium test - dipstik, strips

Dipstik aquarium test - dipstik, strips

£15.24
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Salifert silicate profi - salifert, test

Salifert silicate profi - salifert, test

£12.45
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Aquarium samoa coral - samoa, 5kg

Aquarium samoa coral - samoa, 5kg

£42.95
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Salifert test kit - salifert,

Salifert test kit - salifert,

£74.99
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Cloverleaf marine fish - marine, wormer

Cloverleaf marine fish - marine, wormer

£7.89
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New led glass aquarium - led,

New led glass aquarium - led,

£49.95
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Salifert oxygen profi test - profi,

Salifert oxygen profi test - profi,

£11.70
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Fluval aquaplus cycle 500ml - fluval,

Fluval aquaplus cycle 500ml - fluval,

£22.99
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Triton icp oes seawater - icp-oes,

Triton icp oes seawater - icp-oes,

£33.11
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Eden gravel vacuum cleaner - 60,

Eden gravel vacuum cleaner - 60,

£39.95
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Mini internal filter - mini,

Mini internal filter - mini,

£12.95
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Biorb loop aquarium fish - loop, tank

Biorb loop aquarium fish - loop, tank

£179.95
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Reusable filter socks - reusable, pp

Reusable filter socks - reusable, pp

£11.18
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Elegant large buddha - buddha, fish

Elegant large buddha - buddha, fish

£26.99
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Oase biorb water treatments - water,

Oase biorb water treatments - water,

£11.95
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Biorb life aquarium all - life,

Biorb life aquarium all - life,

£241.95
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Salifert test kit set marine - test,

Salifert test kit set marine - test,

£34.95
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Vastocean coral cutter with - cutter,

Vastocean coral cutter with - cutter,

£14.52
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Biorb treasure chest sculpture - biorb,

Biorb treasure chest sculpture - biorb,

£29.95
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Seachem reef plus complete - seachem,

Seachem reef plus complete - seachem,

£19.55
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Api liquid aquarium fish tank - liquid,

Api liquid aquarium fish tank - liquid,

£23.95
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Fish tank protein skimmer - protein,

Fish tank protein skimmer - protein,

£12.47
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Nature dimensions clear nano - dimensions,

Nature dimensions clear nano - dimensions,

£104.70
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Seachem carbonate complete - carbonate,

Seachem carbonate complete - carbonate,

£9.52
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Api master test - test, freshwater

Api master test - test, freshwater

£28.95
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Rk2 dry live - dry, tower

Rk2 dry live - dry, tower

£156.70
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Aquarium sand cleaner fish - aquarium,

Aquarium sand cleaner fish - aquarium,

£9.99
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Aquarium lily pipe - lily, outlets

Aquarium lily pipe - lily, outlets

£4.87
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Aquarium fish tank - tank, submersible

Aquarium fish tank - tank, submersible

£11.90
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Biorb plate coral button - biorb,

Biorb plate coral button - biorb,

£12.95
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Aquarium test strips way - strips,, 7-way

Aquarium test strips way - strips,, 7-way

£14.83
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Oase biorb coloured sea fan - oase,

Oase biorb coloured sea fan - oase,

£13.95
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Labs marine lab test - lab,

Labs marine lab test - lab,

£13.99
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Aquarium auto top off - aquarium,

Aquarium auto top off - aquarium,

£7.74
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Activated carbon pellet - activated,

Activated carbon pellet - activated,

£16.95
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Liquid water level sensor - liquid,

Liquid water level sensor - liquid,

£2.62
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Biorb life aquarium all - aquarium,

Biorb life aquarium all - aquarium,

£345.95
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Durable piece 180 - 180, micron

Durable piece 180 - 180, micron

£12.99
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Biorb barnacle sculpture - biorb,

Biorb barnacle sculpture - biorb,

£25.95
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Acrylic skimmer marine - marine, protein

Acrylic skimmer marine - marine, protein

£17.09
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Aquarium test strips 1 - aquarium, 8-in-1

Aquarium test strips 1 - aquarium, 8-in-1

£16.40
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Api calcium aquarium - api,

Api calcium aquarium - api,

£11.65
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Eheim pick 160 filter - eheim, for

Eheim pick 160 filter - eheim, for

£29.67
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Biorb classic 60l white - biorb,

Biorb classic 60l white - biorb,

£187.95
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Aquarium fish tank submersible - fish,

Aquarium fish tank submersible - fish,

£11.99
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Tunze care magnet - tunze,

Tunze care magnet - tunze,

£17.49
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Decorative sunken battleship - decorative,

Decorative sunken battleship - decorative,

£4.99
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Aquarium test strips - 7,

Aquarium test strips - 7,

£13.51
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Activated carbon pellet form - pellet,

Activated carbon pellet form - pellet,

£39.75
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Biorb oase white sea - white, lily

Biorb oase white sea - white, lily

£12.95
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Aquarium cave fish tank tunnel - tank,

Aquarium cave fish tank tunnel - tank,

£37.99
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Bettapod floating betta - bettapod,

Bettapod floating betta - bettapod,

£13.95
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📊96 listings · from £2.62 · avg £49.03

Browse 96 saltwater tank listings currently in our index. Prices range from £2.62 to £389.95, with an average of £49.03. 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 £2.62, while premium listings can reach £389.95 — giving you a wide budget spread to work with. The average price of £49.03 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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