For Sale UK

Marine aquarium

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Marine aquarium for sale on Ireland's largest auction and classifieds sites

Home / Fish & Aquarium / Marine aquarium refurbished & used for sale | For Sale UK
Red sea max - red, marine

Red sea max - red, marine

£384.10 · Buy It Now

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Red sea reef matt - sea,

Red sea reef matt - sea,

£145.26 · Buy It Now

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Nero wavemaker pump for - ai,

Nero wavemaker pump for - ai,

£104.70 · Buy It Now

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Instant ocean marine - salt, 2kg

Instant ocean marine - salt, 2kg

£104.99 · Buy It Now

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Egg crate for - for, fish

Egg crate for - for, fish

£3.49 · Buy It Now

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Marine aquarium nori seaweed - aquarium,

Marine aquarium nori seaweed - aquarium,

£3.99 · Buy It Now

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Aquarium wave maker pump - wave,

Aquarium wave maker pump - wave,

£4.68 · Buy It Now

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Atm colony marine nitrifying - colony,

Atm colony marine nitrifying - colony,

£28.90 · Buy It Now

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Hidom external aquarium filter - external,

Hidom external aquarium filter - external,

£64.95 · Buy It Now

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Fluval sea evo 52l marine - evo,

Fluval sea evo 52l marine - evo,

£159.99 · Buy It Now

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Red sea reef dose aquarium - reef,

Red sea reef dose aquarium - reef,

£208.70 · Buy It Now

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Aquarium fish tank cabinet - fish,

Aquarium fish tank cabinet - fish,

£599.99 · Buy It Now

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Red sea reefwave marine - red,

Red sea reefwave marine - red,

£125.50 · Buy It Now

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Jebao marine reef aquarium - jebao,

Jebao marine reef aquarium - jebao,

£48.99 · Buy It Now

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Hidom controllable pump - hidom,

Hidom controllable pump - hidom,

£79.99 · Buy It Now

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Hidom aquarium air pump - air,

Hidom aquarium air pump - air,

£8.45 · Buy It Now

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Tims ammonium chloride - ammonium,

Tims ammonium chloride - ammonium,

£11.99 · Buy It Now

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Tropic marin all for - for, reef

Tropic marin all for - for, reef

£22.99 · Buy It Now

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Diversa aquarium with stand - aquarium,

Diversa aquarium with stand - aquarium,

£479.99 · Buy It Now

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Fluval sea evo marine - fluval,

Fluval sea evo marine - fluval,

£169.99 · Buy It Now

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Aquarium fish transport - transport, bags

Aquarium fish transport - transport, bags

£28.99 · Buy It Now

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Aqua one reefsys - aqua,

Aqua one reefsys - aqua,

£818.99 · Buy It Now

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140cm aquarium light - aquarium, rgb

140cm aquarium light - aquarium, rgb

£29.95 · Buy It Now

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Ha6 sealant silicone rtv - silicone,

Ha6 sealant silicone rtv - silicone,

£59.99 · Buy It Now

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Diversa aquarium with stand - aquarium,

Diversa aquarium with stand - aquarium,

£409.99 · Buy It Now

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Instant ocean marine salt 2kg - ocean,

Instant ocean marine salt 2kg - ocean,

£210.99 · Buy It Now

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Aquarium light led fish - light,

Aquarium light led fish - light,

£36.99 · Buy It Now

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Blue marine reef aquarium - marine,

Blue marine reef aquarium - marine,

£8.99 · Buy It Now

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Hidom aquarium powerhead - hidom,

Hidom aquarium powerhead - hidom,

£9.95 · Buy It Now

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Red sea aiptasia - red,

Red sea aiptasia - red,

£67.00 · Buy It Now

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Seachem prime water - seachem,

Seachem prime water - seachem,

£14.99 · Buy It Now

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Seachem prime dechlorinator - seachem,

Seachem prime dechlorinator - seachem,

£14.45 · Buy It Now

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Aqua medic 300w titanium - medic,

Aqua medic 300w titanium - medic,

£25.00 · Buy It Now

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Instant ocean marine salt - instant,

Instant ocean marine salt - instant,

£57.95 · Buy It Now

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Aquarium filter media net - ,

Aquarium filter media net - ,

£3.49 · Buy It Now

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Ocean nutrition formula one - ocean, &

Ocean nutrition formula one - ocean, &

£12.99 · Buy It Now

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Allpondsolutions wave maker - allpondsolutions,

Allpondsolutions wave maker - allpondsolutions,

£15.99 · Buy It Now

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Aqua one nanoreef marine - aqua,

Aqua one nanoreef marine - aqua,

£139.95 · Buy It Now

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Hidom aquarium powerhead pump - hidom,

Hidom aquarium powerhead pump - hidom,

£11.95 · Buy It Now

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20w marine aquarium - uv,

20w marine aquarium - uv,

£68.30 · Buy It Now

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Aquarium wave maker - aquarium, pump

Aquarium wave maker - aquarium, pump

£4.68 · Buy It Now

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Kessil ap700 led marine - ap700,

Kessil ap700 led marine - ap700,

£399.00 · Buy It Now

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Premium egg crate heavy duty - egg,

Premium egg crate heavy duty - egg,

£3.69 · Buy It Now

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Usb aquarium light led - light,

Usb aquarium light led - light,

£4.99 · Buy It Now

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Fauna marin dino algae - dino,

Fauna marin dino algae - dino,

£29.99 · Buy It Now

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120cm aquarium light - uk,

120cm aquarium light - uk,

£36.99 · Buy It Now

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Jumpguard diy aquarium - jumpguard,

Jumpguard diy aquarium - jumpguard,

£10.45 · Buy It Now

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Hidom aquarium air - aquarium,

Hidom aquarium air - aquarium,

£14.99 · Buy It Now

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Fluval sea evo marine - evo,

Fluval sea evo marine - evo,

£159.99 · Buy It Now

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Instant ocean aquarium salt - aquarium,

Instant ocean aquarium salt - aquarium,

£3.99 · Buy It Now

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3000l marine aquarium wave - aquarium,

3000l marine aquarium wave - aquarium,

£12.99 · Buy It Now

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Salifert marine all one - salifert,

Salifert marine all one - salifert,

£29.95 · Buy It Now

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Marine flake flakes fish food - ,

Marine flake flakes fish food - ,

£5.83 · Buy It Now

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100 sheets grade nori - 100, a

100 sheets grade nori - 100, a

£6.89 · Buy It Now

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Titanium heater elitech - d-d,

Titanium heater elitech - d-d,

£81.99 · Buy It Now

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External aquarium canister - external,

External aquarium canister - external,

£79.99 · Buy It Now

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Fluidised reactor without - d-d,

Fluidised reactor without - d-d,

£39.95 · Buy It Now

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Aquarium marine wavemaker - aquarium,

Aquarium marine wavemaker - aquarium,

£22.99 · Buy It Now

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Seachem prime dechlorinator - prime,

Seachem prime dechlorinator - prime,

£134.95 · Buy It Now

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Cleartides nano overflow - overflow, box

Cleartides nano overflow - overflow, box

£54.95 · Buy It Now

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Hidom aquarium air pump fish - hidom,

Hidom aquarium air pump fish - hidom,

£14.99 · Buy It Now

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Bcuk frozen bloodworm fish - bcuk,

Bcuk frozen bloodworm fish - bcuk,

£15.95 · Buy It Now

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Prime marine aquarium - ai,

Prime marine aquarium - ai,

£130.00 · Buy It Now

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Aquarium marine wavemaker - aquarium,

Aquarium marine wavemaker - aquarium,

£18.99 · Buy It Now

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Marine aquarium aquaroche - marine,

Marine aquarium aquaroche - marine,

£63.10 · Buy It Now

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Jrbao mow 0 marine - mow-22,

Jrbao mow 0 marine - mow-22,

£140.00 · Buy It Now

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220 240v aquarium - 220-240v, wave

220 240v aquarium - 220-240v, wave

£4.96 · Buy It Now

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Reef crystals marine salt - crystals, 2kg

Reef crystals marine salt - crystals, 2kg

£298.95 · Buy It Now

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Full spectrum 150cm - full,

Full spectrum 150cm - full,

£36.98 · Buy It Now

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Seachem reef iodide marine - seachem,

Seachem reef iodide marine - seachem,

£8.99 · Buy It Now

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Red sea reef energy - red, plus

Red sea reef energy - red, plus

£36.99 · Buy It Now

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Vitalis platinum marine - vitalis,

Vitalis platinum marine - vitalis,

£14.99 · Buy It Now

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Rgbw tube aquarium light - t8,

Rgbw tube aquarium light - t8,

£17.49 · Buy It Now

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Salifert test kit - -, marine

Salifert test kit - -, marine

£12.89 · Buy It Now

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Full spectrum aquarium light - spectrum,

Full spectrum aquarium light - spectrum,

£36.45 · Buy It Now

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Itc reefculture alr - reefculture, 1

Itc reefculture alr - reefculture, 1

£104.70 · Buy It Now

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Marine aquarium nori seaweed - marine,

Marine aquarium nori seaweed - marine,

£5.99 · Buy It Now

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Red sea reefer 350 aquarium - red,

Red sea reefer 350 aquarium - red,

£207.66 · Buy It Now

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Red sea reef - dose, 4

Red sea reef - dose, 4

£210.00 · Buy It Now

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Aquaforest reef salt - aquaforest,

Aquaforest reef salt - aquaforest,

£69.99 · Buy It Now

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Purolite mixed bed indicator - purolite,

Purolite mixed bed indicator - purolite,

£74.95 · Buy It Now

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Blue marine reef aquarium - blue, 60

Blue marine reef aquarium - blue, 60

£14.99 · Buy It Now

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Hikari seaweed extreme - hikari,

Hikari seaweed extreme - hikari,

£9.45 · Buy It Now

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Jbl combiset marine aquarium - jbl,

Jbl combiset marine aquarium - jbl,

£39.95 · Buy It Now

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Iquatics juwel compatible - iquatics,

Iquatics juwel compatible - iquatics,

£179.99 · Buy It Now

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Pod port copepod housing - port,

Pod port copepod housing - port,

£15.99 · Buy It Now

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Aquaforest nitraphos minus - aquaforest,

Aquaforest nitraphos minus - aquaforest,

£12.99 · Buy It Now

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100 bio balls sump - balls,

100 bio balls sump - balls,

£8.99 · Buy It Now

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Hepo led marine aquarium light - marine,

Hepo led marine aquarium light - marine,

£41.99 · Buy It Now

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Fluval pf2 programmable auto - programmable,

Fluval pf2 programmable auto - programmable,

£40.80 · Buy It Now

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Alr1 algae light reactor - reactor, with

Alr1 algae light reactor - reactor, with

£125.50 · Buy It Now

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Hidom aquarium 8000l - aquarium, wave

Hidom aquarium 8000l - aquarium, wave

£19.99 · Buy It Now

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Bulkhead aquarium marine - bulkhead, to

Bulkhead aquarium marine - bulkhead, to

£5.99 · Buy It Now

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Fluval reef nano led light - 4.0,

Fluval reef nano led light - 4.0,

£99.99 · Buy It Now

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Jebao wave maker - wave, wavemaker

Jebao wave maker - wave, wavemaker

£99.99 · Buy It Now

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Red sea reefer - red, marine

Red sea reefer - red, marine

£511.60 · Buy It Now

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📊96 listings · from £3.49 · avg £90.64
⚠️ These listings were last updated more than 23 days ago. Search for fresh listings

Browse 96 marine aquarium listings currently in our index. Prices range from £3.49 to £818.99, with an average of £90.64. 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 marine aquarium →

Try this: reef aquarium | nano reef | fish tank pump | aquaone tank | tropical fish tank accessories | large corner aquarium | large castle aquarium ornament | large aquarium tank | rena fish tank | 3ft fish tanks

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Everything you need to know about marine aquarium

Whether you are looking for a brand-new or second-hand marine aquarium, 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 £3.49, while premium listings can reach £818.99 — giving you a wide budget spread to work with. The average price of £90.64 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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