Red sea
Red sea for sale on Ireland's largest auction and classifieds sites
Red sea reefrun 6000 - reefrun, g2 - £151.50
Red sea reefrun • 6000 bought last • February you can - Free postage - New and Used
Red sea reefrun • 6000 bought last • February you can - Free postage - New and Used
Red sea reefwave marine - sea, 25 - £229.50
Red sea reef • Wave makers everything • Included too use - Free postage - New and Used
Red sea reef • Wave makers everything • Included too use - Free postage - New and Used
Red sea reef can - reef, 18 - £52.70
Red sea reef • Can marine aquarium • Top container high - Free postage - New and Used
Red sea reef • Can marine aquarium • Top container high - Free postage - New and Used
Red sea reef wave - sea, - £156.70
Red sea reefwave • Working perfectly selling • Due tank failure - Free postage - New and Used
Red sea reefwave • Working perfectly selling • Due tank failure - Free postage - New and Used
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Red sea reef doser - sea, - £198.30
Condition good working • Order will come • Seen photos note - Free postage - New and Used
Condition good working • Order will come • Seen photos note - Free postage - New and Used
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48 listings · from £2.49 · avg £116.59
⚠️ These listings were last updated more than 23 days ago.
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Browse 48 red sea listings currently in our index. Prices range from £2.49 to £1050, with an average of £116.59. 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 red sea →
Red sea reefwave aquarium - 25, - £125.50
Controller working fine • Came home pump • Always had running - Free postage - New and Used
Controller working fine • Came home pump • Always had running - Free postage - New and Used
Red sea complete - complete, care - £38.00
Red sea complete • Reef care marine • Aquarium premium water - Free postage - New and Used
Red sea complete • Reef care marine • Aquarium premium water - Free postage - New and Used
Red sea reef dose marine - dose, - £208.70
Condition good working • Order will come • Seen photos - Free postage - New and Used
Condition good working • Order will come • Seen photos - Free postage - New and Used
Red sea reef - red, - £260.70
Have used reef • Dose about 2.5 • Years just before - Free postage - New and Used
Have used reef • Dose about 2.5 • Years just before - Free postage - New and Used
Red sea reefer - red, sump - £2.49
Sea reefer 170 • Perfect fit red • Sump this clip - Free postage - New and Used
Sea reefer 170 • Perfect fit red • Sump this clip - Free postage - New and Used
Aquarium mesh lid for - for, sea - £215.00
Frozen food feeder • Holes not including • Red sea nano - Free postage - New and Used
Frozen food feeder • Holes not including • Red sea nano - Free postage - New and Used
Redsea max e170 - redsea, - £52.70
Redsea max eq70 • 260 skimmer sale • Thanks - Free postage - New and Used
Redsea max eq70 • 260 skimmer sale • Thanks - Free postage - New and Used
Red sea max nano - max, | - £6.99
Random flow generator • Red sea max • Nano this custom - Free postage - New and Used
Random flow generator • Red sea max • Nano this custom - Free postage - New and Used
Red sea reefer - sea, x1 - £5.99
Red sea filter • Very simple install • Easy maintain change - Free postage - New and Used
Red sea filter • Very simple install • Easy maintain change - Free postage - New and Used
Red sea rsk300 skimmer - red, - £373.90
Red sea rsk300 • Skimmer high quality • Features advanced technology - Free postage - New and Used
Red sea rsk300 • Skimmer high quality • Features advanced technology - Free postage - New and Used
Red sea reef led 160 - reef, - £185.00
Light itself good • Working order psu • Needs replacing photo - Free postage - New and Used
Light itself good • Working order psu • Needs replacing photo - Free postage - New and Used
Red sea filter media cup - red, - £17.75
Filter media cup • R42177 brand new • Marine aquarium accessory - Free postage - New and Used
Filter media cup • R42177 brand new • Marine aquarium accessory - Free postage - New and Used
Red sea reef energy - reef, ab - £16.15
Red sea • Brand new august • 2026 expiry date - Free postage - New and Used
Red sea • Brand new august • 2026 expiry date - Free postage - New and Used
Aquarium mesh lid - mesh, - £165.00
Frozen food feeder • Red sea max • Nano peninsula 600mm - Free postage - New and Used
Frozen food feeder • Red sea max • Nano peninsula 600mm - Free postage - New and Used
Printed protein skimmer - 3d, - £16.00
- Free postage - New and Used
- Free postage - New and Used
Red sea marine care - red, - £14.00
Marine care coralline • Gro 500ml new • Water additive specifically - Free postage - New and Used
Marine care coralline • Gro 500ml new • Water additive specifically - Free postage - New and Used
Aquarium mesh lid for - mesh, - £180.00
Frozen food feeder • Red sea reefer • 170 600mm 500mm - Free postage - New and Used
Frozen food feeder • Red sea reefer • 170 600mm 500mm - Free postage - New and Used
Aquarium mesh lid - red, sea - £185.00
Frozen food feeder • Red sea reefer • 200 600mm 575mm - Free postage - New and Used
Frozen food feeder • Red sea reefer • 200 600mm 575mm - Free postage - New and Used
Red sea reefmat 500 marine - red, - £239.90
Red sea reefmat • 500 partial rolls • Included - Free postage - New and Used
Red sea reefmat • 500 partial rolls • Included - Free postage - New and Used
Red sea marine care - sea, - £10.80
Red sea marine • Care coralline gro • 500ml water additive - Free postage - New and Used
Red sea marine • Care coralline gro • 500ml water additive - Free postage - New and Used
Red sea reefer - red, adjustable - £19.95
Manufactured these change • Waterflow pattern red • Sea reefer aquariums - Free postage - New and Used
Manufactured these change • Waterflow pattern red • Sea reefer aquariums - Free postage - New and Used
Aquarium mesh lid for red - for, - £165.00
Frozen food feeder • Red sea max • Nano 500 600mm - Free postage - New and Used
Frozen food feeder • Red sea max • Nano 500 600mm - Free postage - New and Used
Red sea nano max filter - nano, - £5.99
Enhance clarity your • Aquarium water red • Sea nano max - Free postage - New and Used
Enhance clarity your • Aquarium water red • Sea nano max - Free postage - New and Used
Red sea reefer - sea, - £1050.00
This lovely tank • Excellent condition very • Little signs wear - Free postage - New and Used
This lovely tank • Excellent condition very • Little signs wear - Free postage - New and Used
Red sea coral trace - sea, colours - £21.50
Bought was going • Start dosing 75l • Saltwater tank but - Free postage - New and Used
Bought was going • Start dosing 75l • Saltwater tank but - Free postage - New and Used
Red sea aquarium marine - sea, aquarium/marine - £414.70
Red sea aquarium • Light cover square • Shaped accessory specifically - Free postage - New and Used
Red sea aquarium • Light cover square • Shaped accessory specifically - Free postage - New and Used
Red sea max nano bio - red, ball - £25.00
Red sea max • Bio sphere holder • High quality printed - Free postage - New and Used
Red sea max • Bio sphere holder • High quality printed - Free postage - New and Used
Redsea skimmer 300 can - redsea, - £104.70
Absolute piece work • Not big fan • Redsea equipment general - Free postage - New and Used
Absolute piece work • Not big fan • Redsea equipment general - Free postage - New and Used
Red sea diy aquarium net - sea, - £8.50
Use red sea • Aquarium net covers • Larger cut outs - Free postage - New and Used
Use red sea • Aquarium net covers • Larger cut outs - Free postage - New and Used
Printed skimmer stand for - 3d, - £17.50
- Free postage - New and Used
- Free postage - New and Used
Red sea reefer aquarium filter - sea, - £22.95
Red sea reefer • Aquarium filter sock • Silencer manufacture these - Free postage - New and Used
Red sea reefer • Aquarium filter sock • Silencer manufacture these - Free postage - New and Used
Red sea reefer 900 protein - sea, - £363.70
Built manual neck • Cleaner - Free postage - New and Used
Built manual neck • Cleaner - Free postage - New and Used
Random flow generator - generator, (rfg) - £5.99
Sea max nano • Flow generator • Easy installation enhance - Free postage - New and Used
Sea max nano • Flow generator • Easy installation enhance - Free postage - New and Used
Pair flow directors suit - pair, - £26.70
Reefwave wavemaker pump • Can positioned closer • Surface water improving - Free postage - New and Used
Reefwave wavemaker pump • Can positioned closer • Surface water improving - Free postage - New and Used
Red sea marine - sea, kh - £10.80
Red sea marine • Care coralline gro • 500ml water additive - Free postage - New and Used
Red sea marine • Care coralline gro • 500ml water additive - Free postage - New and Used
Red sea max - red, - £8.49
Suitable red sea • Max nano cube • Peninsula tanks both - Free postage - New and Used
Suitable red sea • Max nano cube • Peninsula tanks both - Free postage - New and Used
Red sea part complete reef - sea, - £21.50
Printed red sea • Part complete reef • Care 300l bottle - Free postage - New and Used
Printed red sea • Part complete reef • Care 300l bottle - Free postage - New and Used
Red sea 100 micron felt - sea, - £8.65
100 micron felt • This filter bag • Media marine aquariums - Free postage - New and Used
100 micron felt • This filter bag • Media marine aquariums - Free postage - New and Used
Red sea max - red, - £9.72
- Free postage - New and Used
- Free postage - New and Used
Red sea max - max, xl/xxl - £30.00
Red sea max • Nano compatible piece • Perfect reef tank - Free postage - New and Used
Red sea max • Nano compatible piece • Perfect reef tank - Free postage - New and Used
Red sea reefer filtercup - sea, - £5.99
Quantity filter cup • Condition shown good • Working order - Free postage - New and Used
Quantity filter cup • Condition shown good • Working order - Free postage - New and Used
Red sea foundation magnesium - red, c - £129.83
1000 liter per • Bottle formulation liquid • Water type marine - Free postage - New and Used
1000 liter per • Bottle formulation liquid • Water type marine - Free postage - New and Used
Latest design red - -, sea - £10.79
Turbulent flow nozzle • Area healthy aquarium • This made fit - Free postage - New and Used
Turbulent flow nozzle • Area healthy aquarium • This made fit - Free postage - New and Used
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Everything you need to know about red sea
Whether you are looking for a brand-new or second-hand red sea, 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 £2.49, while premium listings can reach £1050 — giving you a wide budget spread to work with. The average price of £116.59 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.