For Sale UK

100l fish tank

4

100l fish tank for sale on largest auction and classifieds sites

Home / Fish & Aquariums / 100l fish tank for sale – 96 used, around £24 | For Sale UK
Aqua one aquanano - aqua,

Aqua one aquanano - aqua,

£351.99
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Swell aquarium 60cm tropical - aquarium,

Swell aquarium 60cm tropical - aquarium,

£95.29
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Ciano aquarium led - ciano, 52l

Ciano aquarium led - ciano, 52l

£90.65
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Swell led complete aquarium - swell,

Swell led complete aquarium - swell,

£70.99
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Superfish start tropical - start,

Superfish start tropical - start,

£119.99
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Aquael leddy day night - aquael, &

Aquael leddy day night - aquael, &

£79.99
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Superfish start aquarium stand - start,

Superfish start aquarium stand - start,

£59.99
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Hidom submersible aquarium - submersible,

Hidom submersible aquarium - submersible,

£13.45
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Hidom submersible aquarium - hidom,

Hidom submersible aquarium - hidom,

£13.45
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Nitrico goop live filter - live,

Nitrico goop live filter - live,

£16.95
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Aqua one aquanano aquariums - aqua,

Aqua one aquanano aquariums - aqua,

£399.99
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Boyu 100l glass freshwater - boyu,

Boyu 100l glass freshwater - boyu,

£203.50
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Aquarium air pump - aquarium,

Aquarium air pump - aquarium,

£11.99
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Fish tank ultra clear low - tank,

Fish tank ultra clear low - tank,

£39.99
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Marina lux led - lux, aquarium

Marina lux led - lux, aquarium

£125.29
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Elegant 26l self cleaning - 26l, self-cleaning

Elegant 26l self cleaning - 26l, self-cleaning

£87.99
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Fish fun heater - fun, thermostat

Fish fun heater - fun, thermostat

£10.95
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Superfish aqua flow - superfish, aqua-flow

Superfish aqua flow - superfish, aqua-flow

£16.99
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Fluval a440 107 - 107, fish

Fluval a440 107 - 107, fish

£78.70
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Tetra aquasafe fish - tetra,

Tetra aquasafe fish - tetra,

£7.39
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Fluval external filter with - filter,

Fluval external filter with - filter,

£109.99
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Oase filtosmart 100 200 300 - filtosmart,

Oase filtosmart 100 200 300 - filtosmart,

£74.79
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Fish fun heater - fish, r

Fish fun heater - fish, r

£10.95
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Seachem purigen filter media - purigen,

Seachem purigen filter media - purigen,

£329.99
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Aquael magic algae stop - aquael,

Aquael magic algae stop - aquael,

£5.99
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Oase indoor filtosmart - indoor,

Oase indoor filtosmart - indoor,

£74.69
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100 200w aquarium - aquarium, water

100 200w aquarium - aquarium, water

£12.87
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Fluval aquarium heater - fluval, t

Fluval aquarium heater - fluval, t

£24.99
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Aqua one betta sanctuary - aqua, |

Aqua one betta sanctuary - aqua, |

£69.99
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Brand new ciano aqua - ciano,

Brand new ciano aqua - ciano,

£104.70
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Juwel vio cube - 54 l, aquarium

Juwel vio cube - 54 l, aquarium

£239.99
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Fluval 107 207 307 - , fx

Fluval 107 207 307 - , fx

£109.99
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100w submersible aquarium - 100w,

100w submersible aquarium - 100w,

£4.41
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Aquarium fish tank tropical - fish,

Aquarium fish tank tropical - fish,

£13.99
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Seachem purigen filter media - purigen,

Seachem purigen filter media - purigen,

£8.99
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Eheim submersible aquarium - eheim,

Eheim submersible aquarium - eheim,

£22.49
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Aquael leddy day night - 60,

Aquael leddy day night - 60,

£108.19
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Superfish aquaflow internal - superfish,

Superfish aquaflow internal - superfish,

£16.99
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Small nano aquarium fish - small,

Small nano aquarium fish - small,

£34.99
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Biorb flow 30l white - flow,

Biorb flow 30l white - flow,

£95.00
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Titanium heater elitech - heater,

Titanium heater elitech - heater,

£86.99
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Internal aquarium fish tank - aquarium,

Internal aquarium fish tank - aquarium,

£12.99
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Marina breeding box - breeding, fish

Marina breeding box - breeding, fish

£6.70
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Aqua one air - operated, ornament

Aqua one air - operated, ornament

£12.45
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Hidom aquarium heater - aquarium,

Hidom aquarium heater - aquarium,

£11.95
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Superfish aquaflow aquarium - aquaflow,

Superfish aquaflow aquarium - aquaflow,

£16.99
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Oase filtosmart thermo - oase,

Oase filtosmart thermo - oase,

£91.95
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Single outlet aquarium air - single,

Single outlet aquarium air - single,

£12.99
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Aquarium internal corner - aquarium,

Aquarium internal corner - aquarium,

£14.99
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Allpondsolutions internal - allpondsolutions,

Allpondsolutions internal - allpondsolutions,

£22.99
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Eheim air pump 100 200 - eheim, 100,200,400

Eheim air pump 100 200 - eheim, 100,200,400

£29.95
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Oase bioplus thermo internal - bioplus,

Oase bioplus thermo internal - bioplus,

£61.95
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200w aquarium water - aquarium, heater

200w aquarium water - aquarium, heater

£12.51
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Oase bioplus - bioplus, &

Oase bioplus - bioplus, &

£42.99
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Aquarium air pump kit silent - pump,

Aquarium air pump kit silent - pump,

£11.71
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Superfish aquarium fish - fish, tank

Superfish aquarium fish - fish, tank

£14.95
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Air driven sponge - air,

Air driven sponge - air,

£8.99
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Eheim compact water flow - eheim,

Eheim compact water flow - eheim,

£104.99
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Fluval series electronic - t,

Fluval series electronic - t,

£25.02
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Aquarium tropical marine - aquarium, /

Aquarium tropical marine - aquarium, /

£13.49
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Eheim compact water flow - compact,

Eheim compact water flow - compact,

£75.87
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Eheim jager aquarium fish - eheim,

Eheim jager aquarium fish - eheim,

£23.95
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Tetra 100 submersible - tetra, ht

Tetra 100 submersible - tetra, ht

£5.45
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Eheim air pump 100 200 - 400, &

Eheim air pump 100 200 - 400, &

£29.95
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Fluval aquarium heater fully - t,

Fluval aquarium heater fully - t,

£30.65
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Oase bioplus internal aquarium - internal,

Oase bioplus internal aquarium - internal,

£42.95
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Betta 400 external - betta,

Betta 400 external - betta,

£63.22
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Hidom submersible tropical - hidom,

Hidom submersible tropical - hidom,

£11.95
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Fluval sea circulation pump - fluval,

Fluval sea circulation pump - fluval,

£35.99
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Tetra aquasafe 50ml 100ml - tetra,

Tetra aquasafe 50ml 100ml - tetra,

£6.29
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Superfish hang filter - hang-on,

Superfish hang filter - hang-on,

£18.90
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Tetra 600 plus - tetra, in

Tetra 600 plus - tetra, in

£21.99
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Oase filtosmart external - oase,

Oase filtosmart external - oase,

£74.95
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Tetra nitrate minus - tetra, 100ml

Tetra nitrate minus - tetra, 100ml

£10.89
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Tetra easy balance - 100ml, 250ml

Tetra easy balance - 100ml, 250ml

£5.75
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Bubble magus qq2 internal - bubble,

Bubble magus qq2 internal - bubble,

£58.45
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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£11.45
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Aqua one ocellaris external - one,

Aqua one ocellaris external - one,

£42.99
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Aqua one ocellaris external - aqua,

Aqua one ocellaris external - aqua,

£51.99
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Internal uv fish - internal, tank

Internal uv fish - internal, tank

£12.00
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Eheim thermocontrol heater - thermocontrol,

Eheim thermocontrol heater - thermocontrol,

£22.30
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Marina submersible pre set - marina, pre-set

Marina submersible pre set - marina, pre-set

£7.59
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Ciano 100w aquarium - ciano,

Ciano 100w aquarium - ciano,

£9.02
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Aqua one aquarium - aqua,

Aqua one aquarium - aqua,

£14.52
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Aquarium air pump - pump, silent

Aquarium air pump - pump, silent

£11.86
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Sochting oxydator increase - oxydator, d

Sochting oxydator increase - oxydator, d

£40.00
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Fluval clearmax 300g aquarium - fluval,

Fluval clearmax 300g aquarium - fluval,

£7.79
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Fish tank allpondsolutions - tank,

Fish tank allpondsolutions - tank,

£13.99
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Fluval 103 external aquarium - fluval,

Fluval 103 external aquarium - fluval,

£39.99
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Fish tank allpondsolutions - fish,

Fish tank allpondsolutions - fish,

£11.99
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Aquarium digital black - digital,

Aquarium digital black - digital,

£5.45
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Aquarium digital black - aquarium,

Aquarium digital black - aquarium,

£6.45
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Superfish bio air - superfish, filter

Superfish bio air - superfish, filter

£15.85
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Aqua one aquanano 100l - one, 60

Aqua one aquanano 100l - one, 60

£511.99
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Superfish start aquarium - superfish, &

Superfish start aquarium - superfish, &

£119.99
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170l fish tank 100cm - tank, black

170l fish tank 100cm - tank, black

£289.99
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📊96 listings · from £4.41 · avg £59.91

Browse 96 100l fish tank listings currently in our index. Prices range from £4.41 to £511.99, with an average of £59.91. 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 100l fish tank →

Try this: 4ft glass tank | 2ft aquarium | rv waste tank | campervan water tank | 200 litre fish tank | 200l fish tank | 60cm fish tank | 35 litre fish tank | fish tank 120 litre | 250 litre fish tank

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Everything you need to know about 100l fish tank

Whether you are looking for a brand-new or second-hand 100l 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 £4.41, while premium listings can reach £511.99 — giving you a wide budget spread to work with. The average price of £59.91 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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