Aquarium decorations
Aquarium decorations for sale on Ireland's largest auction and classifieds sites
Extra large castle fish - castle, xl - £79.99
Castle suitable any • Fish tank easy • Clean keep your - Free postage - New and Used
Castle suitable any • Fish tank easy • Clean keep your - Free postage - New and Used
Pleco caves - x, - £20.00
These caves are • This product consists • Provide hiding spots - Free postage - New and Used
These caves are • This product consists • Provide hiding spots - Free postage - New and Used
Aquarium cave decoration - aquarium, - £17.99
Height 8cm length • 23cm entrance 3.5x3.5cm • Depth 11cm - Free postage - New and Used
Height 8cm length • 23cm entrance 3.5x3.5cm • Depth 11cm - Free postage - New and Used
Ocean rock marine - rock, malawi - £34.99
Malawi tanganyika lake • Victoria all our • Rocks arecarefully hand - Free postage - New and Used
Malawi tanganyika lake • Victoria all our • Rocks arecarefully hand - Free postage - New and Used
Looking for more aquarium decorations?
Search eBay live — fresh results filtered for the best value, updated every hour.
Aquarium fish tank ornament - aquarium, - £14.98
Surface mountain has • Several interconnecting holes • Fish hide reducing - Free postage - New and Used
Surface mountain has • Several interconnecting holes • Fish hide reducing - Free postage - New and Used
📊
48 listings · from £3.73 · avg £14.23
⚠️ These listings were last updated more than 22 days ago.
Search for fresh listings
Browse 48 aquarium decorations listings currently in our index. Prices range from £3.73 to £79.99, with an average of £14.23. 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 aquarium decorations →
Large tall rock mountain - large, - £29.95
Made from poly • Resin safe use • Fish plants - Free postage - New and Used
Made from poly • Resin safe use • Fish plants - Free postage - New and Used
Glowing effect artificial - glowing, - £9.99
Artificial aquarium jellyfish • Decoration attaches included • Suction cup nylon - Free postage - New and Used
Artificial aquarium jellyfish • Decoration attaches included • Suction cup nylon - Free postage - New and Used
Cave rock hide pebble - cave, - £15.99
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
1pc aquarium hollow hole log - aquarium, - £6.27
Provides sense natural • Surroundings turn your • Aquarium into beautiful - Free postage - New and Used
Provides sense natural • Surroundings turn your • Aquarium into beautiful - Free postage - New and Used
Aquarium driftwood red - driftwood, moor - £9.99
Red moor wood • They also have • Biological function are - Free postage - New and Used
Red moor wood • They also have • Biological function are - Free postage - New and Used
Crashed fighter plane wreck - fighter, - £18.98
Suitable hide catfish • Bottom dwelling fish • Multiple swim through - Free postage - New and Used
Suitable hide catfish • Bottom dwelling fish • Multiple swim through - Free postage - New and Used
Superfish deco wood artificial - deco, - £6.49
Superfish forest deco • Wood realistic looking • Copies natural driftwood - Free postage - New and Used
Superfish forest deco • Wood realistic looking • Copies natural driftwood - Free postage - New and Used
Multifunctional aquarium - multifunctional, - £6.99
Material plastic - Free postage - New and Used
Material plastic - Free postage - New and Used
Fish tank ornament - , wreck - £7.98
- Free postage - New and Used
- Free postage - New and Used
Aquarium rock fish - aquarium, tank - £26.99
Not affect water • Nor its cloudiness • Suitable all types - Free postage - New and Used
Not affect water • Nor its cloudiness • Suitable all types - Free postage - New and Used
Aquarium cave decoration - cave, - £22.58
- Free postage - New and Used
- Free postage - New and Used
Aquarium ornament cave - aquarium, - £15.99
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
Superfish deco poster - superfish, - £7.99
Easy cut your • Desired attach aquarium • Such have huge - Free postage - New and Used
Easy cut your • Desired attach aquarium • Such have huge - Free postage - New and Used
Superfish decorative poster - superfish, - £6.99
Simple affordable way • Refresh aquarium style • Such have huge - Free postage - New and Used
Simple affordable way • Refresh aquarium style • Such have huge - Free postage - New and Used
Aquarium fish tank ornament - aquarium, - £26.98
14x4x4cm lxwxh 25x11x10cm - Free postage - New and Used
14x4x4cm lxwxh 25x11x10cm - Free postage - New and Used
Aquarium background static - aquarium, - £7.09
Unique electrostatic technology • Adheres seamlessly via • Adsorption glue needed - Free postage - New and Used
Unique electrostatic technology • Adheres seamlessly via • Adsorption glue needed - Free postage - New and Used
Aquarium wood root decoration - wood, - £12.95
Unique wood also • Beneficial your water • Just like other - Free postage - New and Used
Unique wood also • Beneficial your water • Just like other - Free postage - New and Used
Aquarium fish tank ornament - aquarium, - £15.98
- Free postage - New and Used
- Free postage - New and Used
Tank ornament aquarium - tank, - £7.58
Ideal background landscaping • Will not move • Once place giving - Free postage - New and Used
Ideal background landscaping • Will not move • Once place giving - Free postage - New and Used
10x artificial aquarium plants - artificial, - £6.20
High quality materials • Made from eco • Friendly non toxic - Free postage - New and Used
High quality materials • Made from eco • Friendly non toxic - Free postage - New and Used
Artificial barrel cave - artificial, - £20.74
1pc fish tank • Landscaping artificial barrel • Decor unique design - Free postage - New and Used
1pc fish tank • Landscaping artificial barrel • Decor unique design - Free postage - New and Used
Aquarium fish tank - aquarium, ornament - £14.98
Can provide beautiful • Decoration your aquarium • Also excellent hiding - Free postage - New and Used
Can provide beautiful • Decoration your aquarium • Also excellent hiding - Free postage - New and Used
Grey natural moss stone effect - natural, - £18.98
Provides ideal hideaway • Multiple swim throughs • Grey natural moss - Free postage - New and Used
Provides ideal hideaway • Multiple swim throughs • Grey natural moss - Free postage - New and Used
Aquarium underground hiding - aquarium, - £13.58
- Free postage - New and Used
- Free postage - New and Used
Aquarium fish tank plastic - fish, - £4.99
These plants are • Tall quality decorations • Available six different - Free postage - New and Used
These plants are • Tall quality decorations • Available six different - Free postage - New and Used
Natural dragon stone - natural, - £11.99
Distinctive holey texture • Ideal aquascaping detail • Transform your aquarium - Free postage - New and Used
Distinctive holey texture • Ideal aquascaping detail • Transform your aquarium - Free postage - New and Used
Piece artificial aquarium - 10-piece, - £7.98
- Free postage - New and Used
- Free postage - New and Used
Piece artificial aquarium - 10-piece, - £4.98
All plants pedestal • Fish tank plant • This set has - Free postage - New and Used
All plants pedestal • Fish tank plant • This set has - Free postage - New and Used
Aquarium ornament tunnel - aquarium, head - £15.99
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
This would create • Nice underwater landscape • Give depth interest - Free postage - New and Used
Shipwreck aquarium ornament - aquarium, - £10.75
Gifts aquarium lovers • Ideal aquariums fish • Tanks display creates - Free postage - New and Used
Gifts aquarium lovers • Ideal aquariums fish • Tanks display creates - Free postage - New and Used
Aquarium black blue - aquarium, / - £6.99
This double sided • Aquarium background gives • You choice between - Free postage - New and Used
This double sided • Aquarium background gives • You choice between - Free postage - New and Used
Artificial barrel cave - artificial, - £4.38
1pc fish tank • Landscaping artificial barrel • Decor unique design - Free postage - New and Used
1pc fish tank • Landscaping artificial barrel • Decor unique design - Free postage - New and Used
Fish tank ornament resin - fish, - £5.45
Pavilion tree bridge • Enhance your aquarium • Decoration eye catching - Free postage - New and Used
Pavilion tree bridge • Enhance your aquarium • Decoration eye catching - Free postage - New and Used
Large botanical enrichment - large, box - £20.42
This box will • Also gradually naturally • Lower levels helping - Free postage - New and Used
This box will • Also gradually naturally • Lower levels helping - Free postage - New and Used
Pack aquarium fish tank - 10, - £6.99
- Free postage - New and Used
- Free postage - New and Used
Crashed fighter plane - crashed, - £15.98
Suitable hide catfish • Bottom dwelling fish • Multiple swim through - Free postage - New and Used
Suitable hide catfish • Bottom dwelling fish • Multiple swim through - Free postage - New and Used
Aquarium fish tank - fish, - £12.89
After receiving goods • Soak them water • Six hours let - Free postage - New and Used
After receiving goods • Soak them water • Six hours let - Free postage - New and Used
3pcs aquarium tank plastic - 3pcs, - £3.73
Ideal decoration fish • Tank aquarium material • Plastic quantity set - Free postage - New and Used
Ideal decoration fish • Tank aquarium material • Plastic quantity set - Free postage - New and Used
Pack aquarium fish - aquarium, tank - £7.90
Perfect enhancing look • Any fish tank • While providing safe - Free postage - New and Used
Perfect enhancing look • Any fish tank • While providing safe - Free postage - New and Used
Roman ampitheatre ruin - ampitheatre, - £8.98
Roman ampitheatre ruin • Aquarium column hollow • Design doesn displace - Free postage - New and Used
Roman ampitheatre ruin • Aquarium column hollow • Design doesn displace - Free postage - New and Used
10pcs artificial floating - 10pcs, - £5.53
10pcs artificial fishes • Random beautiful decorations • Colorful moving fish - Free postage - New and Used
10pcs artificial fishes • Random beautiful decorations • Colorful moving fish - Free postage - New and Used
Light green silk - green, - £7.95
You are purchasing • Single silk aquarium • Plant these plants - Free postage - New and Used
You are purchasing • Single silk aquarium • Plant these plants - Free postage - New and Used
Floating aquarium sea mine - £12.83
Turn your fish • Tank into adventurous • Deep sea scene - Free postage - New and Used
Turn your fish • Tank into adventurous • Deep sea scene - Free postage - New and Used
Try this: aquatics | automatic fish feeder | bioflow | biosphere | cold water fish | co2 reactor | fish pond filters | jebao | lps coral | marine tank
Shop by budget
Everything you need to know about aquarium decorations
Whether you are looking for a brand-new or second-hand aquarium decorations, 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 £3.73, while premium listings can reach £79.99 — giving you a wide budget spread to work with. The average price of £14.23 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.