For Sale UK

Marine fish tank

4

Marine fish tank for sale on largest auction and classifieds sites

Home / Fish & Aquariums / Marine fish tank for sale – 96 used, around £30 | For Sale UK
Aqua one minireef black - black,

Aqua one minireef black - black,

£349.99
Buy It Now

» View on eBay #sponsored
Used fluval roma - roma, 200

Used fluval roma - roma, 200

£175.00
Buy It Now

» View on eBay #sponsored
Hailea fish tank marine - fish,

Hailea fish tank marine - fish,

£187.90
Buy It Now

» View on eBay #sponsored
Glass 200l rectangular - glass,

Glass 200l rectangular - glass,

£83.90
Buy It Now

» View on eBay #sponsored
Egg crate for aquarium - egg, fish

Egg crate for aquarium - egg, fish

£3.49
Buy It Now

» View on eBay #sponsored
Tims one only life filter - tims,

Tims one only life filter - tims,

£21.99
Buy It Now

» View on eBay #sponsored
Marine fish tank circulation - fish,

Marine fish tank circulation - fish,

£59.63
Buy It Now

» View on eBay #sponsored
Aquarium algae scraper fish - scraper,,

Aquarium algae scraper fish - scraper,,

£2.49
Buy It Now

» View on eBay #sponsored
Aquarium 500l fish - 500l, 60''

Aquarium 500l fish - 500l, 60''

£520.00
Buy It Now

» View on eBay #sponsored
Aqua one minireef 120 marine - minireef,

Aqua one minireef 120 marine - minireef,

£619.99
Buy It Now

» View on eBay #sponsored
External aquarium canister - external,

External aquarium canister - external,

£79.99
Buy It Now

» View on eBay #sponsored
Clearance sale jebao wave - jebao,

Clearance sale jebao wave - jebao,

£52.99
Buy It Now

» View on eBay #sponsored
Hidom external aquarium - external, filter

Hidom external aquarium - external, filter

£64.95
Buy It Now

» View on eBay #sponsored
Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£35.98
Buy It Now

» View on eBay #sponsored
Large gallon tropical fish - large,

Large gallon tropical fish - large,

£80.00
Buy It Now

» View on eBay #sponsored
Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£35.98
Buy It Now

» View on eBay #sponsored
Atm colony marine nitrifying - colony,

Atm colony marine nitrifying - colony,

£29.99
Buy It Now

» View on eBay #sponsored
Submersible aquarium fish - submersible,

Submersible aquarium fish - submersible,

£9.00
Buy It Now

» View on eBay #sponsored
Aquarium glowing wave maker - glowing,

Aquarium glowing wave maker - glowing,

£6.45
Buy It Now

» View on eBay #sponsored
Dry ocean reef rock 20kg - ocean,

Dry ocean reef rock 20kg - ocean,

£62.99
Buy It Now

» View on eBay #sponsored
Fluval sea evo marine - sea,

Fluval sea evo marine - sea,

£174.99
Buy It Now

» View on eBay #sponsored
Api test tube - api,

Api test tube - api,

£11.75
Buy It Now

» View on eBay #sponsored
Aqua one minireef grey ex - aqua,

Aqua one minireef grey ex - aqua,

£349.99
Buy It Now

» View on eBay #sponsored
Aquarium tropical marine - tropical,

Aquarium tropical marine - tropical,

£13.99
Buy It Now

» View on eBay #sponsored
Diversa aquarium with stand - with, /

Diversa aquarium with stand - with, /

£479.99
Buy It Now

» View on eBay #sponsored
Aqua one minireef - minireef,

Aqua one minireef - minireef,

£349.99
Buy It Now

» View on eBay #sponsored
Ocean nutrition prime - nutrition, reef

Ocean nutrition prime - nutrition, reef

£12.85
Buy It Now

» View on eBay #sponsored
3000l marine aquarium wave - 3000l/h,

3000l marine aquarium wave - 3000l/h,

£12.99
Buy It Now

» View on eBay #sponsored
Fluval sea marine - fluval,

Fluval sea marine - fluval,

£282.85
Buy It Now

» View on eBay #sponsored
Fish tank 100x50x50cm and

Fish tank 100x50x50cm and

£312.70
Buy It Now

» View on eBay #sponsored
Oase living water 400l - oase,

Oase living water 400l - oase,

£873.70
Buy It Now

» View on eBay #sponsored
Fluval shaker 168l glass - shaker,

Fluval shaker 168l glass - shaker,

£353.50
Buy It Now

» View on eBay #sponsored
Aqua one nanoreef - aqua, marine

Aqua one nanoreef - aqua, marine

£139.95
Buy It Now

» View on eBay #sponsored
Phosphate silicate remover - silicate,

Phosphate silicate remover - silicate,

£11.00
Buy It Now

» View on eBay #sponsored
Natural ocean rock 20kg - 20kg, box

Natural ocean rock 20kg - 20kg, box

£59.95
Buy It Now

» View on eBay #sponsored
Fluval fx6 external - fluval,

Fluval fx6 external - fluval,

£317.99
Buy It Now

» View on eBay #sponsored
Aquatic fluorescent tubes - aquatic,

Aquatic fluorescent tubes - aquatic,

£39.97
Buy It Now

» View on eBay #sponsored
Fish tank test strips - fish,

Fish tank test strips - fish,

£9.95
Buy It Now

» View on eBay #sponsored
Boyo fish tank aquarium - boyo,

Boyo fish tank aquarium - boyo,

£208.70
Buy It Now

» View on eBay #sponsored
Aqua oak aquarium 155l - aquarium,

Aqua oak aquarium 155l - aquarium,

£390.00
Buy It Now

» View on eBay #sponsored
Lcd digital thermometer - digital,

Lcd digital thermometer - digital,

£2.83
Buy It Now

» View on eBay #sponsored
Hidom aquarium 8000l wave - hidom,

Hidom aquarium 8000l wave - hidom,

£19.99
Buy It Now

» View on eBay #sponsored
Lcd digital thermometer - lcd,

Lcd digital thermometer - lcd,

£3.59
Buy It Now

» View on eBay #sponsored
Tmc kreisel jellyfish - kreisel, 15

Tmc kreisel jellyfish - kreisel, 15

£125.50
Buy It Now

» View on eBay #sponsored
Jebao marine reef - jebao, aquarium

Jebao marine reef - jebao, aquarium

£54.99
Buy It Now

» View on eBay #sponsored
Aqua one nanoreef marine - nanoreef,

Aqua one nanoreef marine - nanoreef,

£299.99
Buy It Now

» View on eBay #sponsored
Titanium heater elitech - d-d,

Titanium heater elitech - d-d,

£86.99
Buy It Now

» View on eBay #sponsored
Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£25.99
Buy It Now

» View on eBay #sponsored
Evolution aqua pure - pure, reef

Evolution aqua pure - pure, reef

£14.95
Buy It Now

» View on eBay #sponsored
Eheim thermocontrol heater - thermocontrol,

Eheim thermocontrol heater - thermocontrol,

£29.99
Buy It Now

» View on eBay #sponsored
Api nitrate test kit - test, tropical

Api nitrate test kit - test, tropical

£12.50
Buy It Now

» View on eBay #sponsored
Jumpguard diy aquarium - d-d,

Jumpguard diy aquarium - d-d,

£8.99
Buy It Now

» View on eBay #sponsored
Instant ocean synthetic - ocean, marine

Instant ocean synthetic - ocean, marine

£18.99
Buy It Now

» View on eBay #sponsored
Marina aquarium thermometers - marina,

Marina aquarium thermometers - marina,

£4.00
Buy It Now

» View on eBay #sponsored
Allpondsolutions wave maker - wave,

Allpondsolutions wave maker - wave,

£16.99
Buy It Now

» View on eBay #sponsored
Jumpguard pro diy aquarium - pro,

Jumpguard pro diy aquarium - pro,

£51.99
Buy It Now

» View on eBay #sponsored
Popbloom rl60 rl90 wifi - popbloom,

Popbloom rl60 rl90 wifi - popbloom,

£74.94
Buy It Now

» View on eBay #sponsored
Sicce syncra pump silent - sicce,

Sicce syncra pump silent - sicce,

£53.99
Buy It Now

» View on eBay #sponsored
Marine fish tank circulation - marine,

Marine fish tank circulation - marine,

£69.92
Buy It Now

» View on eBay #sponsored
4mm air line - air, marine

4mm air line - air, marine

£4.95
Buy It Now

» View on eBay #sponsored
Diversa aquarium with stand - stand, /

Diversa aquarium with stand - stand, /

£459.99
Buy It Now

» View on eBay #sponsored
Marine reef tank dosing - marine,

Marine reef tank dosing - marine,

£21.50
Buy It Now

» View on eBay #sponsored
Seachem clarity water - clarity,

Seachem clarity water - clarity,

£11.99
Buy It Now

» View on eBay #sponsored
Fish tank thermometer lcd twin - tank,

Fish tank thermometer lcd twin - tank,

£3.25
Buy It Now

» View on eBay #sponsored
Aquarium surface skimmer - aquarium,

Aquarium surface skimmer - aquarium,

£12.99
Buy It Now

» View on eBay #sponsored
25w 300w submersible aquarium - submersible,

25w 300w submersible aquarium - submersible,

£9.50
Buy It Now

» View on eBay #sponsored
Ha6 310ml aquarium silicone - aquarium,

Ha6 310ml aquarium silicone - aquarium,

£22.99
Buy It Now

» View on eBay #sponsored
Caribsea aragalive fiji pink - aragalive,

Caribsea aragalive fiji pink - aragalive,

£38.99
Buy It Now

» View on eBay #sponsored
Allpondsolutions dual marine - allpondsolutions,

Allpondsolutions dual marine - allpondsolutions,

£16.99
Buy It Now

» View on eBay #sponsored
Labs pro probiotic - nt, marine

Labs pro probiotic - nt, marine

£13.45
Buy It Now

» View on eBay #sponsored
Eheim thermopreset heaters - eheim,

Eheim thermopreset heaters - eheim,

£26.50
Buy It Now

» View on eBay #sponsored
Caribsea ocean direct natural - direct,

Caribsea ocean direct natural - direct,

£30.99
Buy It Now

» View on eBay #sponsored
Arcadia polyfilter standard - arcadia,

Arcadia polyfilter standard - arcadia,

£15.45
Buy It Now

» View on eBay #sponsored
Fluval fx4 external canister - fx4,

Fluval fx4 external canister - fx4,

£247.99
Buy It Now

» View on eBay #sponsored
Fluval pre set heaters - fluval, p10

Fluval pre set heaters - fluval, p10

£18.40
Buy It Now

» View on eBay #sponsored
Bubble magus roller - bubble,

Bubble magus roller - bubble,

£11.45
Buy It Now

» View on eBay #sponsored
Salifert magnesium mg - mg, profi

Salifert magnesium mg - mg, profi

£13.30
Buy It Now

» View on eBay #sponsored
Interpet aquarium sludge - interpet,

Interpet aquarium sludge - interpet,

£5.99
Buy It Now

» View on eBay #sponsored
Hidom aquarium wave maker - aquarium,

Hidom aquarium wave maker - aquarium,

£14.45
Buy It Now

» View on eBay #sponsored
Seachem aquavitro reef eight - aquavitro,

Seachem aquavitro reef eight - aquavitro,

£16.94
Buy It Now

» View on eBay #sponsored
Genuine eheim parts aquarium - eheim,

Genuine eheim parts aquarium - eheim,

£11.99
Buy It Now

» View on eBay #sponsored
Submersible aquarium fish - submersible, tank

Submersible aquarium fish - submersible, tank

£14.99
Buy It Now

» View on eBay #sponsored
Complete setup marine fish - complete,

Complete setup marine fish - complete,

£208.70
Buy It Now

» View on eBay #sponsored
Aquarium coral sand - sand, white

Aquarium coral sand - sand, white

£15.25
Buy It Now

» View on eBay #sponsored
Salifert test kit marine - salifert,

Salifert test kit marine - salifert,

£12.89
Buy It Now

» View on eBay #sponsored
Polyp lab reef roids - polyp,

Polyp lab reef roids - polyp,

£15.99
Buy It Now

» View on eBay #sponsored
Bubble magus auto roller - roller, mat

Bubble magus auto roller - roller, mat

£13.31
Buy It Now

» View on eBay #sponsored
Unique dinosaur skeleton model - skeleton,

Unique dinosaur skeleton model - skeleton,

£4.79
Buy It Now

» View on eBay #sponsored
Pro jbl aquatest - marin, kit

Pro jbl aquatest - marin, kit

£52.70
Buy It Now

» View on eBay #sponsored
Aquarium 710l fish - 710l, x

Aquarium 710l fish - 710l, x

£830.00
Buy It Now

» View on eBay #sponsored
Ista coral frag rack - ista,

Ista coral frag rack - ista,

£4.49
Buy It Now

» View on eBay #sponsored
Aquatic fluorescent marine - fluorescent,

Aquatic fluorescent marine - fluorescent,

£29.97
Buy It Now

» View on eBay #sponsored
Eheim marine 350l 4ft - marine,

Eheim marine 350l 4ft - marine,

£465.70
Buy It Now

» View on eBay #sponsored
Lcd digital thermometer - lcd,

Lcd digital thermometer - lcd,

£2.99
Buy It Now

» View on eBay #sponsored
400l canister filter set - filter,

400l canister filter set - filter,

£35.98
Buy It Now

» View on eBay #sponsored
Popbloom 2pcs rl90 rl115 reef - popbloom,

Popbloom 2pcs rl90 rl115 reef - popbloom,

£279.00
Buy It Now

» View on eBay #sponsored

Looking for more marine fish tank?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊96 listings · from £2.49 · avg £113.37
⚠️ These listings were last updated more than 12 days ago. Search for fresh listings

Browse 96 marine fish tank listings currently in our index. Prices range from £2.49 to £873.7, with an average of £113.37. 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 fish tank →

Try this: aquarium 5ft | fish tanks | glass wedding fish bowl | juwel trigon 350 | hexagonal fish tank | marine aquarium tank | 5 ft aquarium | corner aquarium fish tank | egg crate | juwel aquarium fish tank

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about marine fish tank

Whether you are looking for a brand-new or second-hand marine fish 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 £2.49, while premium listings can reach £873.7 — giving you a wide budget spread to work with. The average price of £113.37 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.

🔍 marine fish tank Search live on eBay