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Betta aquarium

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Betta aquarium for sale on largest auction and classifieds sites

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Aqua one haven betta tank - 5l,

Aqua one haven betta tank - 5l,

£29.99 · Buy It Now

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Desktop betta tank 2gal - betta,

Desktop betta tank 2gal - betta,

£23.99 · Buy It Now

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Betta fish tank gallon - fish,

Betta fish tank gallon - fish,

£22.49 · Buy It Now

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220v betta fish tank - fish, acrylic

220v betta fish tank - fish, acrylic

£82.94 · Buy It Now

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Fluval 20l betta aquarium fish - fluval,

Fluval 20l betta aquarium fish - fluval,

£99.99 · Buy It Now

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Compact betta fish tank kit - betta,

Compact betta fish tank kit - betta,

£19.99 · Buy It Now

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Aqua one betta quad glass - one,

Aqua one betta quad glass - one,

£199.99 · Buy It Now

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Aquarium cave decoration - aquarium,

Aquarium cave decoration - aquarium,

£19.80 · Buy It Now

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Hygger aquarium heater - hygger,

Hygger aquarium heater - hygger,

£19.99 · Buy It Now

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Compact desktop fish tank - desktop,

Compact desktop fish tank - desktop,

£39.99 · Buy It Now

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Compact betta fish tank - compact,

Compact betta fish tank - compact,

£21.89 · Buy It Now

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Compact betta fish - betta, tank

Compact betta fish - betta, tank

£20.99 · Buy It Now

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Compact betta fish - betta, kit

Compact betta fish - betta, kit

£22.99 · Buy It Now

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Aquarium underground hiding - aquarium,

Aquarium underground hiding - aquarium,

£22.58 · Buy It Now

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Fluval betta premium - premium, aquarium

Fluval betta premium - premium, aquarium

£99.99 · Buy It Now

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Betta choice 638 external - betta,

Betta choice 638 external - betta,

£42.10 · Buy It Now

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Aqua one betta trio glass - aqua,

Aqua one betta trio glass - aqua,

£132.99 · Buy It Now

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1pc floating betta - 1pc,

1pc floating betta - 1pc,

£4.09 · Buy It Now

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Modular led betta fish tank - betta,

Modular led betta fish tank - betta,

£15.79 · Buy It Now

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Aquarium artificial leaf - aquarium,

Aquarium artificial leaf - aquarium,

£3.97 · Buy It Now

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Aquarium fish tunnel hideout - fish,

Aquarium fish tunnel hideout - fish,

£25.98 · Buy It Now

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Aquarium floating betta - aquarium,

Aquarium floating betta - aquarium,

£2.79 · Buy It Now

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Flow restrictor reducer - flow,

Flow restrictor reducer - flow,

£4.88 · Buy It Now

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Count plastic fish tank - 2,

Count plastic fish tank - 2,

£15.76 · Buy It Now

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Indian almond leaves aquarium - indian,

Indian almond leaves aquarium - indian,

£4.17 · Buy It Now

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Betta fish hammock floating - hammock,,

Betta fish hammock floating - hammock,,

£4.79 · Buy It Now

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Aquarium decor house resin - aquarium,

Aquarium decor house resin - aquarium,

£7.16 · Buy It Now

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Desktop fish tank - desktop,

Desktop fish tank - desktop,

£7.78 · Buy It Now

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Betta aquarium tonic salts - betta,

Betta aquarium tonic salts - betta,

£3.31 · Buy It Now

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Aquarium cave decoration - cave,

Aquarium cave decoration - cave,

£22.58 · Buy It Now

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Betta 400 external - betta, canister

Betta 400 external - betta, canister

£66.55 · Buy It Now

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Betta galactic kestrel - galactic,

Betta galactic kestrel - galactic,

£17.35 · Buy It Now

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Aqua one betta quad aquarium - quad,

Aqua one betta quad aquarium - quad,

£269.99 · Buy It Now

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Fluval betta premium fighter - premium,

Fluval betta premium fighter - premium,

£99.99 · Buy It Now

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Starter betta tank - starter,

Starter betta tank - starter,

£22.49 · Buy It Now

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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£21.58 · Buy It Now

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Betta resting cherub - cherub, aquarium

Betta resting cherub - cherub, aquarium

£12.19 · Buy It Now

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Aquarium fish tank - 5l, with

Aquarium fish tank - 5l, with

£21.58 · Buy It Now

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Betta choice premium digital - betta,

Betta choice premium digital - betta,

£23.79 · Buy It Now

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Betta fish aquarium - fish, bundle

Betta fish aquarium - fish, bundle

£18.99 · Buy It Now

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Betta aquarium gravel cleaner - gravel,

Betta aquarium gravel cleaner - gravel,

£8.99 · Buy It Now

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Compact betta fish - betta,

Compact betta fish - betta,

£21.98 · Buy It Now

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Large alder cones aquarium - large,

Large alder cones aquarium - large,

£29.99 · Buy It Now

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Fluval 20l betta aquarium - 20l, kit

Fluval 20l betta aquarium - 20l, kit

£99.99 · Buy It Now

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Aqua one pico - one,

Aqua one pico - one,

£29.99 · Buy It Now

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4pcs pet fish training toys - training,

4pcs pet fish training toys - training,

£4.49 · Buy It Now

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Compact betta fish tank kit - betta,

Compact betta fish tank kit - betta,

£20.98 · Buy It Now

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Betta aquarium fish tank - betta,

Betta aquarium fish tank - betta,

£11.49 · Buy It Now

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Desktops mini fish - desktops,

Desktops mini fish - desktops,

£10.22 · Buy It Now

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Betta grey stone cave aquarium - betta,

Betta grey stone cave aquarium - betta,

£14.99 · Buy It Now

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Minimalistic design betta fish - minimalistic,

Minimalistic design betta fish - minimalistic,

£21.88 · Buy It Now

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Aquarium fish tank with - aquarium,

Aquarium fish tank with - aquarium,

£22.99 · Buy It Now

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Transparent betta fish tank - transparent,

Transparent betta fish tank - transparent,

£7.88 · Buy It Now

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Compact betta fish tank - fish,

Compact betta fish tank - fish,

£27.59 · Buy It Now

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Ciano cube litre aquarium - litre,

Ciano cube litre aquarium - litre,

£55.97 · Buy It Now

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Zoo med floating betta aquatic - med,

Zoo med floating betta aquatic - med,

£12.10 · Buy It Now

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Aqua one betta oasis complete - oasis,

Aqua one betta oasis complete - oasis,

£60.99 · Buy It Now

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Betta thermal compact heater - thermal,

Betta thermal compact heater - thermal,

£12.99 · Buy It Now

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Shrimp betta blackwater - betta,

Shrimp betta blackwater - betta,

£5.00 · Buy It Now

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Aqua one bt10 betta aquarium - aqua,

Aqua one bt10 betta aquarium - aqua,

£64.99 · Buy It Now

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Pcs fish tank decoration - pcs,

Pcs fish tank decoration - pcs,

£8.95 · Buy It Now

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Minimalistic design betta - minimalistic,

Minimalistic design betta - minimalistic,

£21.85 · Buy It Now

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Hygger mini submersible - hygger,

Hygger mini submersible - hygger,

£10.79 · Buy It Now

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Floating betta cave shrimp - &,

Floating betta cave shrimp - &,

£4.94 · Buy It Now

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Betta half log hideout - hideout, tunnel

Betta half log hideout - hideout, tunnel

£9.99 · Buy It Now

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Betta choice lifespace view - betta,

Betta choice lifespace view - betta,

£105.01 · Buy It Now

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Black aqua one betta due - one, glass

Black aqua one betta due - one, glass

£99.99 · Buy It Now

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Betta choice lifespace view - view, 30

Betta choice lifespace view - view, 30

£79.01 · Buy It Now

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Fish tank divider acrylic - fish,

Fish tank divider acrylic - fish,

£16.29 · Buy It Now

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Betta ring hide aquarium fish - betta,

Betta ring hide aquarium fish - betta,

£12.30 · Buy It Now

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Betta canister filter - filter, external

Betta canister filter - filter, external

£169.99 · Buy It Now

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Compact betta fish - compact, tank

Compact betta fish - compact, tank

£21.69 · Buy It Now

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Betta aquarium pond cylinder - betta,

Betta aquarium pond cylinder - betta,

£2.09 · Buy It Now

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Large aquarium cave - hide, for

Large aquarium cave - hide, for

£37.99 · Buy It Now

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Hikari betta bio - gold, siamese

Hikari betta bio - gold, siamese

£9.19 · Buy It Now

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Aquarium cave decoration roman - aquarium,

Aquarium cave decoration roman - aquarium,

£17.99 · Buy It Now

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Aqua one betta - one,

Aqua one betta - one,

£49.99 · Buy It Now

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Aquarium fish tank with - aquarium,

Aquarium fish tank with - aquarium,

£21.59 · Buy It Now

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Craftsboys aquarium - 4.5l,

Craftsboys aquarium - 4.5l,

£34.65 · Buy It Now

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Betta frigate piece - betta,

Betta frigate piece - betta,

£49.46 · Buy It Now

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Pack aquariums hideouts - pack,

Pack aquariums hideouts - pack,

£5.87 · Buy It Now

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Betta choice acrylic cylinder - betta,

Betta choice acrylic cylinder - betta,

£87.97 · Buy It Now

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Acrylic wallmounted fish tank - fish,

Acrylic wallmounted fish tank - fish,

£14.45 · Buy It Now

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Small fish tank - fish, gallon

Small fish tank - fish, gallon

£22.49 · Buy It Now

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Betta aquarium silicone - betta,

Betta aquarium silicone - betta,

£12.99 · Buy It Now

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Betta choice premium digital - betta,

Betta choice premium digital - betta,

£31.44 · Buy It Now

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Floating betta hide shrimp - betta,

Floating betta hide shrimp - betta,

£5.48 · Buy It Now

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Betta internal aquarium filter - internal,

Betta internal aquarium filter - internal,

£8.65 · Buy It Now

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Betta air action - betta, clam

Betta air action - betta, clam

£10.90 · Buy It Now

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Betta siamese fighting fish - betta/siamese,

Betta siamese fighting fish - betta/siamese,

£5.44 · Buy It Now

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Betta 33cm goldfish fish - 33cm,

Betta 33cm goldfish fish - 33cm,

£29.99 · Buy It Now

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Pleco cichlid breeding - pleco,

Pleco cichlid breeding - pleco,

£4.99 · Buy It Now

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Aqua one betta - betta, half

Aqua one betta - betta, half

£72.99 · Buy It Now

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Betta air action hippo head - air,

Betta air action hippo head - air,

£9.49 · Buy It Now

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Fish tank filter internal - fish,

Fish tank filter internal - fish,

£14.33 · Buy It Now

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Red tiger lotus bulb nymphaea - lotus,

Red tiger lotus bulb nymphaea - lotus,

£8.08 · Buy It Now

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📊96 listings · from £2.09 · avg £34.32
⚠️ These listings were last updated more than 16 days ago. Search for fresh listings

Browse 96 betta aquarium listings currently in our index. Prices range from £2.09 to £269.99, with an average of £34.32. 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 aquarium →

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Everything you need to know about betta aquarium

Whether you are looking for a brand-new or second-hand betta 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 £2.09, while premium listings can reach £269.99 — giving you a wide budget spread to work with. The average price of £34.32 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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