Saltwater aquarium tanks
Saltwater aquarium tanks for sale on Ireland's largest auction and classifieds sites
Salifert test kit - salifert, - £13.35
Salifert profi test • Kits 100 200 • Tests - Free postage - New and Used
Salifert profi test • Kits 100 200 • Tests - Free postage - New and Used
Funktion freshwater - funktion, - £99.99
Suitable both freshwater • Saltwater aquariums four • Programmable flow modes - Free postage - New and Used
Suitable both freshwater • Saltwater aquariums four • Programmable flow modes - Free postage - New and Used
Salifert test kit - test, - £74.99
Test kit salifert • Carbonate hardness alk • Set including - Free postage - New and Used
Test kit salifert • Carbonate hardness alk • Set including - Free postage - New and Used
Ha6 sealant silicone rtv - ha6, - £59.99
High quality non • Automotive silicone sealant • Apply using standard - Free postage - New and Used
High quality non • Automotive silicone sealant • Apply using standard - Free postage - New and Used
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Fluval sea evo 52l - sea, - £159.99
Fluval evo aquarium • Set modern rectangular • Glass tank indoor - Free postage - New and Used
Fluval evo aquarium • Set modern rectangular • Glass tank indoor - Free postage - New and Used
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47 listings · from £6.99 · avg £96.38
Browse 47 saltwater aquarium tanks listings currently in our index. Prices range from £6.99 to £1139.99, with an average of £96.38. 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 →
Salifert profi test kit - profi, range - £34.95
Test kit salifert • Ammonia nh3 nh4 • Profi - Free postage - New and Used
Test kit salifert • Ammonia nh3 nh4 • Profi - Free postage - New and Used
Marine aquarium glass - aquarium, - £6.99
Salt water marine • Aquariums green indicators • Temperature specific most - Free postage - New and Used
Salt water marine • Aquariums green indicators • Temperature specific most - Free postage - New and Used
Aquaforest carbon marine - carbon, - £15.99
Carbon aquaforest reef • Mineral salt maintain • Constant level coral - Free postage - New and Used
Carbon aquaforest reef • Mineral salt maintain • Constant level coral - Free postage - New and Used
Aqua one aquarium fish - one, - £1139.99
Reefsys setting new • Standards reef aquariums • Quality flexibility affordability - Free postage - New and Used
Reefsys setting new • Standards reef aquariums • Quality flexibility affordability - Free postage - New and Used
Aquarium samoa coral sand - coral, 5kg - £42.95
- Free postage - New and Used
- Free postage - New and Used
Rk6 dry live - dry, 6 - £31.90
Pieces dry live • Rock marine saltwater • Aquarium fish tank - Free postage - New and Used
Pieces dry live • Rock marine saltwater • Aquarium fish tank - Free postage - New and Used
Rk4 dry live rock - dry, pieces - £21.50
Nice selection dry • Live rock marine • Saltwater aquarium fish - Free postage - New and Used
Nice selection dry • Live rock marine • Saltwater aquarium fish - Free postage - New and Used
Oase biorb replacement air - biorb, - £15.95
Genuine biorb air • Pump fits all • Airline one way - Free postage - New and Used
Genuine biorb air • Pump fits all • Airline one way - Free postage - New and Used
Marine aquarium saltwater - marine, - £39.85
Two roller silent • Fan has lower • Than 44.7db noise - Free postage - New and Used
Two roller silent • Fan has lower • Than 44.7db noise - Free postage - New and Used
Salifert test kit set - kit, - £28.99
Profi test kit • Set including nitrate • Concentration proper functioning - Free postage - New and Used
Profi test kit • Set including nitrate • Concentration proper functioning - Free postage - New and Used
Aquarium fish tank sinking - aquarium, - £12.83
Item pictured exact • That sale - Free postage - New and Used
Item pictured exact • That sale - Free postage - New and Used
Fluval m150 submersible fish - m150, - £20.99
Use freshwater saltwater • Aquariums durable mirrored • Finish seamlessly blends - Free postage - New and Used
Use freshwater saltwater • Aquariums durable mirrored • Finish seamlessly blends - Free postage - New and Used
Activated carbon pellet - activated, form - £8.79
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
Biorb halo aquarium fish tank - fish, - £239.95
Also available optional • Extra biorb orb • Black silver 15l - Free postage - New and Used
Also available optional • Extra biorb orb • Black silver 15l - Free postage - New and Used
Biorb cube 30l aquarium - cube, clear - £169.95
Biorb cube • Aquarium mcr led • Unique modern looking - Free postage - New and Used
Biorb cube • Aquarium mcr led • Unique modern looking - Free postage - New and Used
Fluval m50 submersible fish - m50, - £20.49
Use freshwater saltwater • Aquariums watt heater • Gallons durable mirrored - Free postage - New and Used
Use freshwater saltwater • Aquariums watt heater • Gallons durable mirrored - Free postage - New and Used
Biorb life aquarium - life, in - £345.95
Aquarium biorb life • You are looking • Can easily converted - Free postage - New and Used
Aquarium biorb life • You are looking • Can easily converted - Free postage - New and Used
Activated carbon pellet form - pellet, - £8.79
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
Biorb classic aquarium acrylic - biorb, - £129.95
Biorb classic • Complete all one • Aquariums can easily - Free postage - New and Used
Biorb classic • Complete all one • Aquariums can easily - Free postage - New and Used
Api 5in1 aquarium water - api, - £12.99
Api test kits • Convenient easy testing • Use set simply - Free postage - New and Used
Api test kits • Convenient easy testing • Use set simply - Free postage - New and Used
Saltwater tank equipment - , - £78.70
Saltwater tank equipment • Not stand can • Sell - Free postage - New and Used
Saltwater tank equipment • Not stand can • Sell - Free postage - New and Used
Seachem carbonate complete - carbonate, - £12.37
Bicarbonate salts reef • Raises carbonate alkalinity - Free postage - New and Used
Bicarbonate salts reef • Raises carbonate alkalinity - Free postage - New and Used
Biorb treasure chest - treasure, - £16.15
Compatible model biorb • Cube tube flow • Halo life classic - Free postage - New and Used
Compatible model biorb • Cube tube flow • Halo life classic - Free postage - New and Used
Aquarium fish tank robot - tank, - £75.16
Item pictured exact • That sale you • May also like - Free postage - New and Used
Item pictured exact • That sale you • May also like - Free postage - New and Used
Ha6 silicone sealant rtv - ha6, - £9.39
Ha6 silicone premium • Non shrinking marine • Sealant approved conforms - Free postage - New and Used
Ha6 silicone premium • Non shrinking marine • Sealant approved conforms - Free postage - New and Used
Api ammonia test - ammonia, kit - £18.99
Ammonia released into • Aquarium forms uneaten • Food decaying organic - Free postage - New and Used
Ammonia released into • Aquarium forms uneaten • Food decaying organic - Free postage - New and Used
Led glass aquarium fish - glass, tank - £29.95
Specially allow plenty • Room your fish • Swim explore - Free postage - New and Used
Specially allow plenty • Room your fish • Swim explore - Free postage - New and Used
Rk2 stunning dry - stunning, - £52.70
Stunning dry live • Rock which has • Naturally formed into - Free postage - New and Used
Stunning dry live • Rock which has • Naturally formed into - Free postage - New and Used
Activated carbon pellet form - carbon, - £49.95
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
This premium grade • Carbon granular micro • Pellet form allowing - Free postage - New and Used
Aqua one aquarium - aqua, tanks - £911.99
Reefsys setting new • Standards reef aquariums • Quality flexibility affordability - Free postage - New and Used
Reefsys setting new • Standards reef aquariums • Quality flexibility affordability - Free postage - New and Used
Reeflowers remalgae aquarium - reeflowers, - £16.49
Reeflowers remalgae prevents • Undesired moss helps • Prevent algae growth - Free postage - New and Used
Reeflowers remalgae prevents • Undesired moss helps • Prevent algae growth - Free postage - New and Used
Seachem prime aquarium - prime, 2l - £52.70
All our products • Sold are sourced • From australian wholesalers - Free postage - New and Used
All our products • Sold are sourced • From australian wholesalers - Free postage - New and Used
Saltwater fish and reef - saltwater, tanks - £17.65
Saltwater fish reef • Tanks premier source • Information new experienced - Free postage - New and Used
Saltwater fish reef • Tanks premier source • Information new experienced - Free postage - New and Used
Tunze comline doc protein - comline, - £149.99
Sensitive reef biotopes • Stone corals 150 • Litres gal compact - Free postage - New and Used
Sensitive reef biotopes • Stone corals 150 • Litres gal compact - Free postage - New and Used
Seachem reef complete marine - seachem, - £13.99
Seachem reef complete • Use capful per • Gallons twice week - Free postage - New and Used
Seachem reef complete • Use capful per • Gallons twice week - Free postage - New and Used
Aqua one stripglo - aqua, led - £53.99
Aqua one stripglo • Marine led lighting • Range features aesthetic - Free postage - New and Used
Aqua one stripglo • Marine led lighting • Range features aesthetic - Free postage - New and Used
Waterlife buffer 200g - 8.3, - £9.99
Waterlife 8.3 buffer • 230g ensure your • Aquarium water stays - Free postage - New and Used
Waterlife 8.3 buffer • 230g ensure your • Aquarium water stays - Free postage - New and Used
Api master saltwater test kit - saltwater, - £29.99
Four essential tests • High range ammonia • Nitrite nitrate providing - Free postage - New and Used
Four essential tests • High range ammonia • Nitrite nitrate providing - Free postage - New and Used
Spectrum prdi reverse - ro, - £52.69
Spectrum filtration specialist • Sealed 20inch mixed • Bead redin cartridges - Free postage - New and Used
Spectrum filtration specialist • Sealed 20inch mixed • Bead redin cartridges - Free postage - New and Used
Api master test - test, freshwater - £13.51
Aquarium water testing • Couldn easier nitrite • Nitrate carbonate general - Free postage - New and Used
Aquarium water testing • Couldn easier nitrite • Nitrate carbonate general - Free postage - New and Used
Salifert test kh kit - salifert, - £39.99
Test kit salifert • Very straightforward does • Not suffer from - Free postage - New and Used
Test kit salifert • Very straightforward does • Not suffer from - Free postage - New and Used
Aquarium fish tank sinking - aquarium, - £65.65
Item pictured exact • That sale you • May also like - Free postage - New and Used
Item pictured exact • That sale you • May also like - Free postage - New and Used
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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 47 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 £6.99, while premium listings can reach £1139.99 — giving you a wide budget spread to work with. The average price of £96.38 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.