Saltwater tank
Saltwater tank for sale on Ireland's largest auction and classifieds sites
Salifert test kit marine - test, - £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
Harvey twin tank - harvey, twin-tank - £229.50
Uses standard block • Salt solid upgrade • Over basic single - Free postage - New and Used
Uses standard block • Salt solid upgrade • Over basic single - 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
Fluval aquaplus water - fluval, - £12.65
Fluval aqua plus • Formulated pure herbal • Extracts reduces fish - Free postage - New and Used
Fluval aqua plus • Formulated pure herbal • Extracts reduces fish - Free postage - New and Used
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Salifert profi test kit range - salifert, - £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
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48 listings · from £2.23 · avg £112.63
⚠️ These listings were last updated more than 9 days ago.
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Browse 48 saltwater tank listings currently in our index. Prices range from £2.23 to £1139.99, with an average of £112.63. 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 →
Fluval sea evo - 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
Api 5in1 aquarium water - api, test - £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
Fluval sea salt hydrometer - fluval, - £9.45
Its compact design • Allows easily installed • Inside tank continuous - Free postage - New and Used
Its compact design • Allows easily installed • Inside tank continuous - Free postage - New and Used
Funktion freshwater - d-d, - £84.99
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
Tmc salifert profi test kit - tmc, - £11.75
Profitest kit tests • Tmc salifert • Test kits provide - Free postage - New and Used
Profitest kit tests • Tmc salifert • Test kits provide - Free postage - New and Used
Rk1 pieces of real reef - 4, - £21.50
Pieces real reef • Dry live rock • Combined weight around - Free postage - New and Used
Pieces real reef • Dry live rock • Combined weight around - Free postage - New and Used
Aquarium samoa coral - samoa, sand - £42.95
- Free postage - New and Used
- Free postage - New and Used
Aquaforest carbon marine - carbon, 1l - £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
Led glass aquarium fish - led, - £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
Fish tank kit small - tank, - £52.91
Upgrade your aquarium • Appeal visually stunning • Made high transparency - Free postage - New and Used
Upgrade your aquarium • Appeal visually stunning • Made high transparency - Free postage - New and Used
Api ammonia test kit liquid - api, - £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
Biorb classic aquarium acrylic - biorb, - £165.95
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 master test - api, kits - £12.99
High range 7.4 • 8.8 ammonia nh3 • Instructions glass test - Free postage - New and Used
High range 7.4 • 8.8 ammonia nh3 • Instructions glass test - Free postage - New and Used
Saltwater salt gravimeter - saltwater, - £5.51
Suitable fish tank • Aquarium aquaculture etc • Picture - Free postage - New and Used
Suitable fish tank • Aquarium aquaculture etc • Picture - Free postage - New and Used
Api master saltwater test - test, kit - £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
Fluval m150 submersible - fluval, fish - £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
Waterlife buffer 2 8 - waterlife, 6.5, - £9.99
Waterlife buffer • 8.3 230g ideal • Seawater brackish tropical - Free postage - New and Used
Waterlife buffer • 8.3 230g ideal • Seawater brackish tropical - Free postage - New and Used
Rk3 unique dry tonga live - unique, - £26.70
Unique piece dry • Tonga live rock • 1.7kg marine saltwater - Free postage - New and Used
Unique piece dry • Tonga live rock • 1.7kg marine saltwater - Free postage - New and Used
Hanna 774 marine phosphate - hanna, hi-774 - £82.95
Hanna 774 marine • Phosphate ulr checker • Colorimeter saltwater reef - Free postage - New and Used
Hanna 774 marine • Phosphate ulr checker • Colorimeter saltwater reef - Free postage - New and Used
Activated carbon pellet form - activated, - £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
Marine aquarium glass - marine, - £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
Biorb life aquarium - biorb, in - £159.95
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
Eheim aquastar marine - eheim, - £389.95
Eheim aquastar marine • Aquarium ideal saltwater • Made from high - Free postage - New and Used
Eheim aquastar marine • Aquarium ideal saltwater • Made from high - Free postage - New and Used
Seachem prime aquarium - seachem, - £89.03
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
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
Saltwater fish tank decoration - fish, - £499.99
This product collection • Saltwater fish tank • Decorations accessories including - Free postage - New and Used
This product collection • Saltwater fish tank • Decorations accessories including - Free postage - New and Used
Salifert test kit set - salifert, - £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
Aqua one aquarium fish - aqua, - £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
Biorb cube 30l aquarium clear - cube, - £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
Rk2 stunning dry live rock - dry, - £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
Ha6 sealant silicone rtv - sealant, - £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
Juwel blue lamp aquarium - blue, t5 - £21.99
Juwel high lite • Blue tubes are • Use saltwater aquariums - Free postage - New and Used
Juwel high lite • Blue tubes are • Use saltwater aquariums - Free postage - New and Used
Tunze care magnet aquarium - care, - £53.95
Tunze care magnets • Are high quality • Aquarium cleaning product - Free postage - New and Used
Tunze care magnets • Are high quality • Aquarium cleaning product - Free postage - New and Used
Salifert test kit - test, - £34.95
Test kit salifert • Carbonate hardness alk • Very straightforward does - Free postage - New and Used
Test kit salifert • Carbonate hardness alk • Very straightforward does - Free postage - New and Used
Salifert test set po4 - set, - £23.99
Profi test kit • Set including salifert • Already detects within - Free postage - New and Used
Profi test kit • Set including salifert • Already detects within - Free postage - New and Used
Oase biorb aquarium pebble - oase, - £12.95
Oase biorb moss • Pebbles are large • Covered stone genuine - Free postage - New and Used
Oase biorb moss • Pebbles are large • Covered stone genuine - Free postage - New and Used
Biorb halo aquarium - biorb, - £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
Saltwater size s - saltwater, - £2.23
This saltwater tank • Tunic top made • From super soft - Free postage - New and Used
This saltwater tank • Tunic top made • From super soft - Free postage - New and Used
Aqua one aquarium - aquarium, tanks - £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
Salifert test kit set - salifert, - £74.90
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
Api saltwater master test - master, - £27.99
Maintaining good water • Quality key successful • Fishkeeping api saltwater - Free postage - New and Used
Maintaining good water • Quality key successful • Fishkeeping api saltwater - Free postage - New and Used
Coral holder high quality - coral, - £19.34
This our high • Quality acrylic coral • Holders ideal corals - Free postage - New and Used
This our high • Quality acrylic coral • Holders ideal corals - Free postage - New and Used
Jebao 10000m smart pump - jebao, - £149.99
Can used marine • Freshwater applications type • Aquarium circulation pump - Free postage - New and Used
Can used marine • Freshwater applications type • Aquarium circulation pump - Free postage - New and Used
Try this: freshwater tropical fish | large marine fish tanks | sump refugium | aquarium glass | clearseal aquarium tanks | cylinder fish tank | coffee table fish tank | clearseal tank | hailea water pump | 3 foot 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 48 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 £2.23, while premium listings can reach £1139.99 — giving you a wide budget spread to work with. The average price of £112.63 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.