Large aquarium rocks
Large aquarium rocks for sale on Ireland's largest auction and classifieds sites
Large tall rock mountain - tall, - £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
Large rock mountain aquarium - large, - £43.98
Length 24.5 width • Height unit centimeters - Free postage - New and Used
Length 24.5 width • Height unit centimeters - Free postage - New and Used
Large rock mountain - large, - £45.98
- Free postage - New and Used
- Free postage - New and Used
Seiryu aquarium aquascaping - seiryu, - £30.00
Seiryu premium aquarium • Aquascaping rocks pieces • 5kg set these - Free postage - New and Used
Seiryu premium aquarium • Aquascaping rocks pieces • 5kg set these - Free postage - New and Used
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Large new natural - 6x, - £13.95
They can used • Other rocks slate • Make ledges crevices - Free postage - New and Used
They can used • Other rocks slate • Make ledges crevices - Free postage - New and Used
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48 listings · from £3.5 · avg £26.52
⚠️ These listings were last updated more than 93 days ago.
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Browse 48 large aquarium rocks listings currently in our index. Prices range from £3.5 to £127.99, with an average of £26.52. 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 large aquarium rocks →
Large new natural rock - new, stone - £16.23
Adds fantastic natural • Look aquariums pond • Aquarium stone rocks - Free postage - New and Used
Adds fantastic natural • Look aquariums pond • Aquarium stone rocks - Free postage - New and Used
Mountain aquatic rock aquarium - aquatic, - £19.99
Aquarium length suitable • Stones should rinsed • Before placing them - Free postage - New and Used
Aquarium length suitable • Stones should rinsed • Before placing them - Free postage - New and Used
Cave rock hide pebble - hide, - £24.99
Great way give • Depth interest your • Aquarium fish tank - Free postage - New and Used
Great way give • Depth interest your • Aquarium fish tank - Free postage - New and Used
Ista water plant rock - ista, planting - £7.99
Ista water plant • Rocks are ideal • Roots providing natural - Free postage - New and Used
Ista water plant • Rocks are ideal • Roots providing natural - Free postage - New and Used
Med large aquarium decor - aquarium, - £24.95
Double peak rock • Set formations has • Been decorated plants - Free postage - New and Used
Double peak rock • Set formations has • Been decorated plants - Free postage - New and Used
Castle ruin rocks - on, cave - £45.99
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
Sea rock cave reef - reef, coral - £28.99
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
Swimming rock aquarium fish - rock, - £28.95
Swimming rocks offers • Totally different take • Aquascaping within aquarium - Free postage - New and Used
Swimming rocks offers • Totally different take • Aquascaping within aquarium - Free postage - New and Used
Large rock mountain - large, aquarium - £34.98
This very large • Aquarium decoration multiple • Shuttle holes - Free postage - New and Used
This very large • Aquarium decoration multiple • Shuttle holes - Free postage - New and Used
Aquariumh2o extra large - aquariumh2o, - £24.95
Artificial rock formation • Aquarium decor will • Look great any - Free postage - New and Used
Artificial rock formation • Aquarium decor will • Look great any - Free postage - New and Used
Large fellas marble rock - fellas, - £34.95
Artificial fellas rock • Great natural look • New line attractive - Free postage - New and Used
Artificial fellas rock • Great natural look • New line attractive - Free postage - New and Used
Aquarium ornament castle ruin - castle, - £42.99
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
Aquariumh2o extra large - extra, resin - £23.95
Large one piece • Artificial rock details • Long 10cm wide - Free postage - New and Used
Large one piece • Artificial rock details • Long 10cm wide - Free postage - New and Used
Aqua one natural aquarium - aqua, - £18.99
Provides safe place • Over years experience • Design installation maintenance - Free postage - New and Used
Provides safe place • Over years experience • Design installation maintenance - Free postage - New and Used
Large natural flat slate rock - slate, - £11.75
Large piece slate • Ideal base aquarium • Vivarium ideally suited - Free postage - New and Used
Large piece slate • Ideal base aquarium • Vivarium ideally suited - Free postage - New and Used
Large new natural flat - 2x, - £12.95
They can used • Other rocks slate • Make ledges crevices - Free postage - New and Used
They can used • Other rocks slate • Make ledges crevices - Free postage - New and Used
Fish tank ornaments for - fish, - £14.99
Ancient chinese warrior • Can provide spot • Nitrifying bacteria attach - Free postage - New and Used
Ancient chinese warrior • Can provide spot • Nitrifying bacteria attach - Free postage - New and Used
Large fossil prehistoric fish - fossil, - £15.98
Hollow design doesn • Displace much water • Large prehistoric fossil - Free postage - New and Used
Hollow design doesn • Displace much water • Large prehistoric fossil - Free postage - New and Used
Large new natural slate - new, - £19.95
Well serving beautiful • Decoration your aquarium • This slate cave - Free postage - New and Used
Well serving beautiful • Decoration your aquarium • This slate cave - Free postage - New and Used
Large new natural flat - large, - £25.95
Can used other • Rocks slate make • Ledges crevices ideal - Free postage - New and Used
Can used other • Rocks slate make • Ledges crevices ideal - Free postage - New and Used
Fossil rock aquarium fish - fossil, - £14.99
They also have • Holes fish swim • Through explore hide - Free postage - New and Used
They also have • Holes fish swim • Through explore hide - Free postage - New and Used
Stunning aquarium large coral - stunning, - £33.99
Here have large • Aquarium coral reef • Cichlide rock hide - Free postage - New and Used
Here have large • Aquarium coral reef • Cichlide rock hide - Free postage - New and Used
Rock cave tunnel hide aquarium - cave, - £28.99
Cave rock hide • Pebble tunnel large • This would create - Free postage - New and Used
Cave rock hide • Pebble tunnel large • This would create - Free postage - New and Used
Large aquarium cave hide for - aquarium, - £27.99
Clean black finish • Smooth interior wide • Entrance made blend - Free postage - New and Used
Clean black finish • Smooth interior wide • Entrance made blend - Free postage - New and Used
Aquarium cave fish tank tunnel - aquarium, - £27.99
Low profile foregroundaquarium • Cave withlarge entrances • Plecos corydoras shrimp - Free postage - New and Used
Low profile foregroundaquarium • Cave withlarge entrances • Plecos corydoras shrimp - Free postage - New and Used
Large rock mountain aquarium - rock, - £45.98
- Free postage - New and Used
- Free postage - New and Used
Aquarium large detailed rock - aquarium, - £17.49
Plants aquarium foods • Real bog curio • Pond bird books - Free postage - New and Used
Plants aquarium foods • Real bog curio • Pond bird books - Free postage - New and Used
Juwel aquarium fish tank - aquarium, - £9.79
Modern aquascape design • One side impressive • Rock structure other - Free postage - New and Used
Modern aquascape design • One side impressive • Rock structure other - Free postage - New and Used
Large galleon rocks - large, on - £32.99
Large galleon rock • Fish tank decoration • New this would - Free postage - New and Used
Large galleon rock • Fish tank decoration • New this would - Free postage - New and Used
Cave rock hide pebble - hide, - £127.99
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
Large natural flat slate - 2x, - £14.75
Large pieces slate • Ideal base aquarium • Vivarium ideally suited - Free postage - New and Used
Large pieces slate • Ideal base aquarium • Vivarium ideally suited - Free postage - New and Used
Rock arch pebble - arch, - £17.50
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
Aquariumh2o large artificial - aquariumh2o, - £32.95
Artificial rock formation • Aquarium decor will • Look great any - Free postage - New and Used
Artificial rock formation • Aquarium decor will • Look great any - Free postage - New and Used
Large aquarium cave hide - aquarium, - £24.95
Natural style tunnel • Cave aquariums reptile • Enclosures perfect betta - Free postage - New and Used
Natural style tunnel • Cave aquariums reptile • Enclosures perfect betta - Free postage - New and Used
Large rock formation - large, - £24.95
Will not alter • Levels wash water • Prior using aquariums - Free postage - New and Used
Will not alter • Levels wash water • Prior using aquariums - Free postage - New and Used
Aquarium under gravel - aquarium, - £11.99
Aquarium underground cave • Cory catfish corydoras • Shrimp snails otocinclus - Free postage - New and Used
Aquarium underground cave • Cory catfish corydoras • Shrimp snails otocinclus - Free postage - New and Used
Large fish tank decorations - large, - £15.58
Great color stylish • Design very unique • Vivid besides still - Free postage - New and Used
Great color stylish • Design very unique • Vivid besides still - Free postage - New and Used
Stunning large detailed - stunning, - £18.99
Large detailed coral • White ocean rock • Replica decoration here - Free postage - New and Used
Large detailed coral • White ocean rock • Replica decoration here - Free postage - New and Used
Aquarium castle rock ornament - castle, - £14.00
Aquarium castle rock • Ornament large fish • Tank bowl decor - Free postage - New and Used
Aquarium castle rock • Ornament large fish • Tank bowl decor - Free postage - New and Used
Cut clean terrarium stone - &, - £3.50
Sized terrarium stone • Rock pieces cut • Various sizes slightly - Free postage - New and Used
Sized terrarium stone • Rock pieces cut • Various sizes slightly - Free postage - New and Used
Large white natural rock stone - white, - £16.23
Adds fantastic natural • Look aquariums pond • Aquarium stone rocks - Free postage - New and Used
Adds fantastic natural • Look aquariums pond • Aquarium stone rocks - Free postage - New and Used
Pcs large glow the dark - glow, - £10.00
This product consists • Large glow dark • Pebbles use fish - Free postage - New and Used
This product consists • Large glow dark • Pebbles use fish - Free postage - New and Used
35cm large tall rock - rock, mountain - £55.19
Fish tank • Unique beautiful artistic • Can help you - Free postage - New and Used
Fish tank • Unique beautiful artistic • Can help you - Free postage - New and Used
Try this: large marine fish | led aquarium light | led fish tank lights | led reef lighting | light tank | live rock aquarium | live saltwater fish | live snails | marine algae | marine aquarium setup
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Everything you need to know about large aquarium rocks
Whether you are looking for a brand-new or second-hand large aquarium rocks, 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 £3.5, while premium listings can reach £127.99 — giving you a wide budget spread to work with. The average price of £26.52 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.