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Fish tank decorations

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Fish tank decorations for sale on largest auction and classifieds sites

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Aquarium pump air bubble - aquarium,

Aquarium pump air bubble - aquarium,

£7.83 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£13.99 · Buy It Now

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Large tall rock mountain fish - mountain,

Large tall rock mountain fish - mountain,

£29.95 · Buy It Now

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Aquarium rock fish tank - aquarium,

Aquarium rock fish tank - aquarium,

£19.99 · Buy It Now

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Aquarium oxygen pump air - aquarium,

Aquarium oxygen pump air - aquarium,

£2.93 · Buy It Now

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Multiple colors artificial - colors,

Multiple colors artificial - colors,

£5.49 · Buy It Now

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Pcs fish tank - fish, decor

Pcs fish tank - fish, decor

£5.39 · Buy It Now

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Fish tank aquarium ornament - tank,

Fish tank aquarium ornament - tank,

£5.84 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£11.87 · Buy It Now

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Extra large castle - extra,

Extra large castle - extra,

£79.99 · Buy It Now

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Aquarium plants artificial - plants,

Aquarium plants artificial - plants,

£10.97 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£14.98 · Buy It Now

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Superfish deco poster aquarium - deco,

Superfish deco poster aquarium - deco,

£7.99 · Buy It Now

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Aquarium fish tank - fish, ornament

Aquarium fish tank - fish, ornament

£15.99 · Buy It Now

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Aquarium wood fish tank - wood,

Aquarium wood fish tank - wood,

£14.03 · Buy It Now

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Aquarium underground cave fish - underground,

Aquarium underground cave fish - underground,

£21.98 · Buy It Now

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Aquarium pineapple house - aquarium,

Aquarium pineapple house - aquarium,

£11.29 · Buy It Now

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Pcs fish tank decors mini - fish,

Pcs fish tank decors mini - fish,

£5.22 · Buy It Now

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Floating rock ornament - floating,

Floating rock ornament - floating,

£12.98 · Buy It Now

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Fish tank decorations - tank, fake

Fish tank decorations - tank, fake

£10.97 · Buy It Now

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Artificial barrel cave - artificial,

Artificial barrel cave - artificial,

£4.49 · Buy It Now

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Artificial barrel cave - barrel,

Artificial barrel cave - barrel,

£3.70 · Buy It Now

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Piece artificial aquarium - artificial,

Piece artificial aquarium - artificial,

£4.75 · Buy It Now

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Large 10pcs aquarium - 10pcs,

Large 10pcs aquarium - 10pcs,

£5.99 · Buy It Now

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10x artificial aquarium plants - 10x,

10x artificial aquarium plants - 10x,

£6.89 · Buy It Now

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Safe fish tank underground - safe,

Safe fish tank underground - safe,

£9.47 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£16.15 · Buy It Now

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Superfish decorative poster - superfish,

Superfish decorative poster - superfish,

£7.99 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£12.99 · Buy It Now

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Fish tank ornament - fish,

Fish tank ornament - fish,

£17.95 · Buy It Now

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Fish tank stone aquarium - aquarium, rock

Fish tank stone aquarium - aquarium, rock

£14.99 · Buy It Now

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Aquarium shipwreck ornament - aquarium,

Aquarium shipwreck ornament - aquarium,

£14.99 · Buy It Now

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Aquarium artificial coral - coral, reef

Aquarium artificial coral - coral, reef

£9.98 · Buy It Now

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Supa air operated bubbler - supa,

Supa air operated bubbler - supa,

£5.63 · Buy It Now

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Best aquarium plant airline - best, &

Best aquarium plant airline - best, &

£6.56 · Buy It Now

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1pc aquarium hollow hole - 1pc,

1pc aquarium hollow hole - 1pc,

£5.56 · Buy It Now

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Aquarium fish tank decor - tank,

Aquarium fish tank decor - tank,

£7.56 · Buy It Now

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Betta stony cave - betta, aquarium

Betta stony cave - betta, aquarium

£13.29 · Buy It Now

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Floating aquarium sea mine

Floating aquarium sea mine

£12.83 · Buy It Now

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Aquarium stone rock - aquarium,

Aquarium stone rock - aquarium,

£29.15 · Buy It Now

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Aquarium wood root - fish, tank

Aquarium wood root - fish, tank

£13.99 · Buy It Now

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Fish tank plants 20pcs - tank, plants,

Fish tank plants 20pcs - tank, plants,

£12.49 · Buy It Now

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Aquarium driftwood red - driftwood,

Aquarium driftwood red - driftwood,

£49.99 · Buy It Now

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Med large ancient - root, wood

Med large ancient - root, wood

£21.98 · Buy It Now

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Plastic aquarium fish tank - plastic,

Plastic aquarium fish tank - plastic,

£2.67 · Buy It Now

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Glowing effect artificial - glowing,

Glowing effect artificial - glowing,

£9.99 · Buy It Now

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Multifunctional aquarium - multifunctional,

Multifunctional aquarium - multifunctional,

£8.06 · Buy It Now

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Artificial water grass plant - water,

Artificial water grass plant - water,

£5.39 · Buy It Now

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Artificial aquarium plants - aquarium,

Artificial aquarium plants - aquarium,

£8.49 · Buy It Now

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Artificial water plants - water,

Artificial water plants - water,

£5.99 · Buy It Now

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Pebble arch aquarium - pebble, swim

Pebble arch aquarium - pebble, swim

£13.65 · Buy It Now

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Aquarium artificial leaf - leaf, betta

Aquarium artificial leaf - leaf, betta

£3.97 · Buy It Now

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Dragon stone ornament fish - dragon,

Dragon stone ornament fish - dragon,

£16.98 · Buy It Now

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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£7.49 · Buy It Now

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Aquarium fish tank ornament - fish,

Aquarium fish tank ornament - fish,

£12.94 · Buy It Now

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Bridge fish tank resin - fish-tank,

Bridge fish tank resin - fish-tank,

£6.46 · Buy It Now

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Marina iglo plant - marina, pink

Marina iglo plant - marina, pink

£5.50 · Buy It Now

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Aquarium background static - aquarium,

Aquarium background static - aquarium,

£7.99 · Buy It Now

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Fish tank decors - tank,

Fish tank decors - tank,

£2.84 · Buy It Now

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Aquarium ornament castle - aquarium, on

Aquarium ornament castle - aquarium, on

£35.99 · Buy It Now

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Artificial fake coral water - artificial,

Artificial fake coral water - artificial,

£5.90 · Buy It Now

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Crashed fighter plane wreck - fighter,

Crashed fighter plane wreck - fighter,

£15.98 · Buy It Now

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10x artificial aquarium plants - aquarium,

10x artificial aquarium plants - aquarium,

£5.75 · Buy It Now

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10pcs aquarium artificial - 10pcs,

10pcs aquarium artificial - 10pcs,

£6.01 · Buy It Now

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Aquarium artificial fake tank - fake,

Aquarium artificial fake tank - fake,

£5.99 · Buy It Now

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Aquarium oxygen pump - aquarium, air

Aquarium oxygen pump - aquarium, air

£2.97 · Buy It Now

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Large artificial aquarium - large,

Large artificial aquarium - large,

£67.99 · Buy It Now

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Fish tank resin - fish, air

Fish tank resin - fish, air

£6.21 · Buy It Now

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Aquarium natural wood - natural,

Aquarium natural wood - natural,

£12.69 · Buy It Now

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Aquarium plant real - aquarium,

Aquarium plant real - aquarium,

£9.49 · Buy It Now

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Aquarium fish hiding cave - aquarium,

Aquarium fish hiding cave - aquarium,

£7.37 · Buy It Now

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Pcs large aquarium plants - 2,

Pcs large aquarium plants - 2,

£12.40 · Buy It Now

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Aquarium fish tank plastic - aquarium,

Aquarium fish tank plastic - aquarium,

£4.99 · Buy It Now

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Mixed artificial green - 10,

Mixed artificial green - 10,

£6.99 · Buy It Now

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Aquarium artificial lotus - aquarium,

Aquarium artificial lotus - aquarium,

£4.30 · Buy It Now

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Fish tank aquarium - fish,

Fish tank aquarium - fish,

£6.49 · Buy It Now

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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£13.43 · Buy It Now

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Aquarium oxygen pump air - oxygen,

Aquarium oxygen pump air - oxygen,

£3.39 · Buy It Now

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Assorted 10cm silk aquarium - 10cm,

Assorted 10cm silk aquarium - 10cm,

£19.99 · Buy It Now

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Pcs fish tank decor - fish,

Pcs fish tank decor - fish,

£5.19 · Buy It Now

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Aquarium fish tank background - aquarium,

Aquarium fish tank background - aquarium,

£7.25 · Buy It Now

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Fish tank plants quozuo - plants,,

Fish tank plants quozuo - plants,,

£12.11 · Buy It Now

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Small aquarium rock cave - small,

Small aquarium rock cave - small,

£7.59 · Buy It Now

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Mixed artificial aquarium fish - mixed,

Mixed artificial aquarium fish - mixed,

£7.99 · Buy It Now

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Seaview quality aquarium fish - quality,

Seaview quality aquarium fish - quality,

£8.95 · Buy It Now

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Piece artificial aquarium - artificial,

Piece artificial aquarium - artificial,

£5.83 · Buy It Now

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Fish tank artificial - fish,

Fish tank artificial - fish,

£5.39 · Buy It Now

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Artificial water grass plant - artificial,

Artificial water grass plant - artificial,

£5.99 · Buy It Now

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Dragon stone rock natural fish - dragon,

Dragon stone rock natural fish - dragon,

£4.89 · Buy It Now

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Ceramic nature breeding caves - nature,

Ceramic nature breeding caves - nature,

£5.24 · Buy It Now

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Silk aquarium fish tank plant - silk,

Silk aquarium fish tank plant - silk,

£8.95 · Buy It Now

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Aquarium fish tank ornament - aquarium,

Aquarium fish tank ornament - aquarium,

£9.58 · Buy It Now

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Aquarium vivarium fish tank - fish,

Aquarium vivarium fish tank - fish,

£14.99 · Buy It Now

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Soft silicone glowing - soft,

Soft silicone glowing - soft,

£6.13 · Buy It Now

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Large stone arch - arch, bridge

Large stone arch - arch, bridge

£23.98 · Buy It Now

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Fish tank underground cave - fish,

Fish tank underground cave - fish,

£9.95 · Buy It Now

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📊96 listings · from £2.67 · avg £11.89

Browse 96 fish tank decorations listings currently in our index. Prices range from £2.67 to £79.99, with an average of £11.89. 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 fish tank decorations →

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Everything you need to know about fish tank decorations

Whether you are looking for a brand-new or second-hand fish tank decorations, 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 £2.67, while premium listings can reach £79.99 — giving you a wide budget spread to work with. The average price of £11.89 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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