Betta fish tanks
Betta fish tanks for sale on Ireland's largest auction and classifieds sites
Aqua one betta trio - one, - £130.95
Aqua one betta • Trio glass aquarium • 32l three fish - Free postage - New and Used
Aqua one betta • Trio glass aquarium • 32l three fish - Free postage - New and Used
Aqua one betta sanctuary - one, | - £69.99
Together pre set • Heater keep water • Right temperature will - Free postage - New and Used
Together pre set • Heater keep water • Right temperature will - Free postage - New and Used
Fluval betta premium - fluval, - £99.99
Fluval betta premium • Aquarium fish tank • Kit 22.7l expansive - Free postage - New and Used
Fluval betta premium • Aquarium fish tank • Kit 22.7l expansive - Free postage - New and Used
Zoo med betta oval shape - med, nano - £20.00
Foods aquarium plants • Real bog curio • Products unit langley - Free postage - New and Used
Foods aquarium plants • Real bog curio • Products unit langley - Free postage - New and Used
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Aquarium fish breeder box - aquarium, - £6.51
Aquarium fish breeder • Box durable betta • Shrimp characteristics functions - Free postage - New and Used
Aquarium fish breeder • Box durable betta • Shrimp characteristics functions - Free postage - New and Used
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48 listings · from £5.99 · avg £46.7
⚠️ These listings were last updated more than 15 days ago.
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Browse 48 betta fish tanks listings currently in our index. Prices range from £5.99 to £262.99, with an average of £46.7. 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 betta fish tanks →
Aqua one haven - haven, tank - £29.99
Aqua one haven • Aquarium betta need • Kept stable temperature - Free postage - New and Used
Aqua one haven • Aquarium betta need • Kept stable temperature - Free postage - New and Used
Small aquarium fish tank - tank, with - £11.35
Perfect goldfish betta • Fish shrimp room • Decorative gravel artificial - Free postage - New and Used
Perfect goldfish betta • Fish shrimp room • Decorative gravel artificial - Free postage - New and Used
Desktop fish tank - 2.5l, - £8.19
Fish tank applicable • Office bedroom desktop • Etc clamp light - Free postage - New and Used
Fish tank applicable • Office bedroom desktop • Etc clamp light - Free postage - New and Used
Aqua one betta - aqua, - £262.99
Aqua one betta • Quad glass aquarium • 60l three fish - Free postage - New and Used
Aqua one betta • Quad glass aquarium • 60l three fish - Free postage - New and Used
Aqua one betta oasis complete - aqua, - £60.99
Betta pellets are • Intended daily feeding • Fish aqua one - Free postage - New and Used
Betta pellets are • Intended daily feeding • Fish aqua one - Free postage - New and Used
Aqua one bt10 betta aquarium - one, - £74.99
Your aquarium its • Has contemporary curved • Glass design which - Free postage - New and Used
Your aquarium its • Has contemporary curved • Glass design which - Free postage - New and Used
Aqua one betta - bt10, half - £72.99
Litre aquarium suitable • Bettas shrimp integrated • Led lighting system - Free postage - New and Used
Litre aquarium suitable • Bettas shrimp integrated • Led lighting system - Free postage - New and Used
Small fish tank blue - small, betta - £8.71
Premium quality building • Block fish tank • Made plastic safe - Free postage - New and Used
Premium quality building • Block fish tank • Made plastic safe - Free postage - New and Used
Betta xxl shipwreck - betta, - £45.00
Used betta xxl • Shipwreck currently selling • New 131 here - Free postage - New and Used
Used betta xxl • Shipwreck currently selling • New 131 here - Free postage - New and Used
Negative pressure fish - negative, tank - £27.47
Enhance your aquarium • Space keep clean • Tank vacuum fish - Free postage - New and Used
Enhance your aquarium • Space keep clean • Tank vacuum fish - Free postage - New and Used
Aqua one betta - one, - £31.90
Decommissioning aqua one • Tank due needing • Great condition comes - Free postage - New and Used
Decommissioning aqua one • Tank due needing • Great condition comes - Free postage - New and Used
Betta choice floating - floating, magnet - £28.96
Glass thickness • Betta choice floating • Magnetic algae cleaner - Free postage - New and Used
Glass thickness • Betta choice floating • Magnetic algae cleaner - Free postage - New and Used
Aquarium 28l glass fish - aquarium, - £68.99
Suitable bettas guppies • Mini parrot fishes • Shrimp goldfishes similar - Free postage - New and Used
Suitable bettas guppies • Mini parrot fishes • Shrimp goldfishes similar - Free postage - New and Used
Fluval 20l betta aquarium kit - fluval, - £99.99
Premium aquarium kit • Fluval betta 22.7l • Has been created - Free postage - New and Used
Premium aquarium kit • Fluval betta 22.7l • Has been created - Free postage - New and Used
Desktops mini fish - tank, with - £10.22
Type desktop betta • Fish tank color • Transparent - Free postage - New and Used
Type desktop betta • Fish tank color • Transparent - Free postage - New and Used
Aqua one bt10 - one, betta - £64.99
Litre capacity curved • Glass front provides • Clear 180 viewing - Free postage - New and Used
Litre capacity curved • Glass front provides • Clear 180 viewing - Free postage - New and Used
Aqua one betta sanctuary 10l - aqua, - £75.45
Together preset heater • Keep water right • Temperature will ensure - Free postage - New and Used
Together preset heater • Keep water right • Temperature will ensure - Free postage - New and Used
Aqua one betta oasis complete - betta, - £59.99
Complete plug play • Glass aquarium compact • Filter preset heater - Free postage - New and Used
Complete plug play • Glass aquarium compact • Filter preset heater - Free postage - New and Used
Betta choice lifespace view - choice, 49 - £109.99
Betta choice lifespace • View litre 45cm • Long aquarium system - Free postage - New and Used
Betta choice lifespace • View litre 45cm • Long aquarium system - Free postage - New and Used
Betta choice floating magnet - betta, - £10.35
Betta choice floating • Magnetic algae cleaner • Other dirt from - Free postage - New and Used
Betta choice floating • Magnetic algae cleaner • Other dirt from - Free postage - New and Used
Fluval 20l betta - 20l, aquarium - £99.99
Fluval betta premium • Integrated water change • Feature ensures effortless - Free postage - New and Used
Fluval betta premium • Integrated water change • Feature ensures effortless - Free postage - New and Used
Small aquarium mini - small, fish - £16.19
Fish tank cleaning • Tools aquarium scrub • Brush betta cleaner - Free postage - New and Used
Fish tank cleaning • Tools aquarium scrub • Brush betta cleaner - Free postage - New and Used
Aquarium decors fish tanks - aquarium, - £16.10
Use base fish • Tanks decoration house • Flat can stably - Free postage - New and Used
Use base fish • Tanks decoration house • Flat can stably - Free postage - New and Used
Betta multi functional - betta, multi-functional - £22.59
Multi functional pet • Tank betta mini • Suitable housing fish - Free postage - New and Used
Multi functional pet • Tank betta mini • Suitable housing fish - Free postage - New and Used
Fish tank betta - 3l, - £28.95
Compact goldfish tank • Built led light • Vibrant aquatic display - Free postage - New and Used
Compact goldfish tank • Built led light • Vibrant aquatic display - Free postage - New and Used
Betta fish tank with - tank, led - £32.93
Complete black wall • Paper practical top • Cover this tank - Free postage - New and Used
Complete black wall • Paper practical top • Cover this tank - Free postage - New and Used
Betta aquarium transparent - betta, - £10.79
Transform your dorm • Into serene micro • Landscape our betta - Free postage - New and Used
Transform your dorm • Into serene micro • Landscape our betta - Free postage - New and Used
Nano tank heater betta - betta, choice - £15.99
Betta choice mini • Aquarium heaters nano • Are suitable warming - Free postage - New and Used
Betta choice mini • Aquarium heaters nano • Are suitable warming - Free postage - New and Used
13l mini fish tank starter - 13l, kit - £22.54
Brand new box • Includes tank lid • Filter lamp not - Free postage - New and Used
Brand new box • Includes tank lid • Filter lamp not - Free postage - New and Used
Pack betta fish - fish, tank - £25.65
Pcs silicone face • Mask brush applicator • Tool double head - Free postage - New and Used
Pcs silicone face • Mask brush applicator • Tool double head - Free postage - New and Used
Betta choice lifespace view - lifespace, - £83.99
Betta choice lifespace • View litre 38cm • Long aquarium system - Free postage - New and Used
Betta choice lifespace • View litre 38cm • Long aquarium system - Free postage - New and Used
Aqua one pico - aqua, - £29.99
Pico betta aquarium • Need kept stable • Temperature within tank - Free postage - New and Used
Pico betta aquarium • Need kept stable • Temperature within tank - Free postage - New and Used
Ciano cube litre aquarium - aquarium, - £55.97
Ciano cube elegant • Functional nano aquarium • Cla20 universal app - Free postage - New and Used
Ciano cube elegant • Functional nano aquarium • Cla20 universal app - Free postage - New and Used
Ultra white glass tank - tank, living - £14.00
Ultra white glass • Tank living room • Betta fish lazy - Free postage - New and Used
Ultra white glass • Tank living room • Betta fish lazy - Free postage - New and Used
Fluval spec iii 19 - fluval, - £18.45
Flow reducer ideal • Betta fish chamber • Plug spray bar - Free postage - New and Used
Flow reducer ideal • Betta fish chamber • Plug spray bar - Free postage - New and Used
Fish tanks decorations betta - fish, - £7.78
Use base fish • Tanks decoration house • Flat can stably - Free postage - New and Used
Use base fish • Tanks decoration house • Flat can stably - Free postage - New and Used
Clear fish breeding - clear, - £10.59
Professional fish tank • Brush aquarium cleaning • Betta cleaner scrubber - Free postage - New and Used
Professional fish tank • Brush aquarium cleaning • Betta cleaner scrubber - Free postage - New and Used
Betta fish tank mini - mini, - £15.18
Fish tank • Pcs shrimp cave • Decoration betta tube - Free postage - New and Used
Fish tank • Pcs shrimp cave • Decoration betta tube - Free postage - New and Used
Fluval betta premium fighter - fluval, - £99.99
Fluval betta premium • Aquarium kit 22.7l • Inspired nature this - Free postage - New and Used
Fluval betta premium • Aquarium kit 22.7l • Inspired nature this - Free postage - New and Used
Zoo med bettatherm heater - zoo, - £5.99
Betta fish bowls • Accessories suitable all • Bowl heater convenient - Free postage - New and Used
Betta fish bowls • Accessories suitable all • Bowl heater convenient - Free postage - New and Used
Betta choice lifespace - view, 17 - £62.99
Betta choice lifespace • View litre 32cm • Long aquarium system - Free postage - New and Used
Betta choice lifespace • View litre 32cm • Long aquarium system - Free postage - New and Used
Glass fish tank - glass, easy - £42.29
These aquariums are • This product set • Rectangular glass fish - Free postage - New and Used
These aquariums are • This product set • Rectangular glass fish - Free postage - New and Used
Aquarium betta heater - betta, - £11.63
Suitable fish tanks • Horned frogs pet • Drinking water etc - Free postage - New and Used
Suitable fish tanks • Horned frogs pet • Drinking water etc - Free postage - New and Used
Try this: aquarium equipment | saltwater tank | freshwater tropical fish | large marine fish tanks | sump refugium | aquarium glass | clearseal aquarium tanks | cylinder fish tank | coffee table fish tank | clearseal tank
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Everything you need to know about betta fish tanks
Whether you are looking for a brand-new or second-hand betta fish tanks, 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 £5.99, while premium listings can reach £262.99 — giving you a wide budget spread to work with. The average price of £46.7 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.