Fish rocks
Fish rocks for sale on Ireland's largest auction and classifieds sites
Aquarium rock fish tank - fish, - £99.99
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 stone rock - aquarium, - £62.63
Dark grey rock • 20kg set select • Carefully selected pieces - Free postage - New and Used
Dark grey rock • 20kg set select • Carefully selected pieces - Free postage - New and Used
Fish tank rock natural - tank, - £29.99
Suitable all types • Aquariums dark colour • Combined irregular shape - Free postage - New and Used
Suitable all types • Aquariums dark colour • Combined irregular shape - Free postage - New and Used
Aquarium rock seiryu - aquarium, - £46.43
Grey mountian rock • 10kg set select • Carefully selected pieces - Free postage - New and Used
Grey mountian rock • 10kg set select • Carefully selected pieces - Free postage - New and Used
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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
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48 listings · from £2.95 · avg £47.01
Browse 48 fish rocks listings currently in our index. Prices range from £2.95 to £189.99, with an average of £47.01. 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 rocks →
Fish tank stone aquarium rock - stone, - £19.99
Stones will require • Rinsing before they • Can placed aquarium - Free postage - New and Used
Stones will require • Rinsing before they • Can placed aquarium - Free postage - New and Used
Aquarium stone seiryu rock - seiryu, - £62.63
Selected aquarium rock • High repeatable quality • Shades grey few - Free postage - New and Used
Selected aquarium rock • High repeatable quality • Shades grey few - Free postage - New and Used
Natural ocean rock 20kg large - rock, - £59.95
Ocean rock • More suitable marine • Hardwater cichlids brackish - Free postage - New and Used
Ocean rock • More suitable marine • Hardwater cichlids brackish - Free postage - New and Used
Dragon rock aquarium stone - aquarium, - £35.63
They also look • Good light ground • Tank tanganyika malawi - Free postage - New and Used
They also look • Good light ground • Tank tanganyika malawi - Free postage - New and Used
Zebra mountain rocks - zebra, - £49.95
Zebra mountain rock • Striking versatile material • Popular among aquascaping - Free postage - New and Used
Zebra mountain rock • Striking versatile material • Popular among aquascaping - Free postage - New and Used
Ocean rock marine - ocean, - £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
Fish tank rock aquarium stone - tank, - £53.99
Great natural base • Building block aquariums • Stone rocky decor - Free postage - New and Used
Great natural base • Building block aquariums • Stone rocky decor - Free postage - New and Used
Large new natural - large, - £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
Aquarium seiryu rock - seiryu, fish - £35.63
They also look • Good light ground • Tank tanganyika malawi - Free postage - New and Used
They also look • Good light ground • Tank tanganyika malawi - Free postage - New and Used
Aquarium stone fish tank - stone, - £22.99
Lava rocks malawi • Sets they also • Look good light - Free postage - New and Used
Lava rocks malawi • Sets they also • Look good light - Free postage - New and Used
Aquarium rock fish tank - rock, - £86.39
May constitute basic • Building block aquariums • Stone rocky decor - Free postage - New and Used
May constitute basic • Building block aquariums • Stone rocky decor - Free postage - New and Used
Med large aquarium decor - med/large, - £29.95
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
Large new natural - rock, stone - £21.63
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
Caribsea life rock 10lb 20lb - caribsea, - £189.99
Amazing new product • From caribsea eco • Rock real reef - Free postage - New and Used
Amazing new product • From caribsea eco • Rock real reef - Free postage - New and Used
Rainbow slate aquarium stone - slate, - £14.03
Rainbow slate 1kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Rainbow slate 1kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Aquarium decoration shell - decoration, - £43.19
Malawi sets perfect • Natural decoration your • Aquarium shell remain - Free postage - New and Used
Malawi sets perfect • Natural decoration your • Aquarium shell remain - Free postage - New and Used
Aquarium stone slate fish tank - slate, - £49.99
Shelter caves great • Hiding places that • Fish they are - Free postage - New and Used
Shelter caves great • Hiding places that • Fish they are - 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
Aqarium rock fish tank stones - rock, - £95.03
Majority stones this • Type are very • Hollow have nice - Free postage - New and Used
Majority stones this • Type are very • Hollow have nice - Free postage - New and Used
Natural aquarium rock stone - rock, & - £2.95
Ohko stone natural • Aquascaping perfect creating • Underwater landscapes shrimp - Free postage - New and Used
Ohko stone natural • Aquascaping perfect creating • Underwater landscapes shrimp - Free postage - New and Used
Dragon rock stone ohko - stone, - £35.98
Popular rock aquascaping • Planted aquariums holes • Crevices that cover - Free postage - New and Used
Popular rock aquascaping • Planted aquariums holes • Crevices that cover - Free postage - New and Used
Natural dragon rock stone - dragon, - £2.99
Great arranging iwagumi • Plant tanks grooves • Holes that cover - Free postage - New and Used
Great arranging iwagumi • Plant tanks grooves • Holes that cover - Free postage - New and Used
Aquarium background for - background, - £155.94
Installation very easy • Just slide background • Inside your tank - Free postage - New and Used
Installation very easy • Just slide background • Inside your tank - Free postage - New and Used
Aquarium stone seiryu - aquarium, - £107.99
Grey mountian rock • 25kg set select • Carefully selected pieces - Free postage - New and Used
Grey mountian rock • 25kg set select • Carefully selected pieces - Free postage - New and Used
Aquarium slate fish tank rock - fish, - £14.99
Slate perfect creating • Caves lining back • Wall aquarium doesn - Free postage - New and Used
Slate perfect creating • Caves lining back • Wall aquarium doesn - Free postage - New and Used
Rainbow slate 5kg aquarium - rainbow, - £29.15
Rainbow slate 5kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Rainbow slate 5kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Aquarium rock fish tank - fish, - £29.15
Great natural base • Building block aquariums • Stone rocky decor - Free postage - New and Used
Great natural base • Building block aquariums • Stone rocky decor - Free postage - New and Used
Aquarium stone rock natural - aquarium, - £51.83
Selected aquarium rock • High repeatable quality • Shades grey few - Free postage - New and Used
Selected aquarium rock • High repeatable quality • Shades grey few - Free postage - New and Used
Aqua forrest marine rock - aqua, - £83.90
Aqua forrest marine • Rock sale was • 149 box but - Free postage - New and Used
Aqua forrest marine • Rock sale was • 149 box but - Free postage - New and Used
Natural ocean rock - natural, medium - £59.95
Ocean rock • More suitable marine • Hardwater cichlids brackish - Free postage - New and Used
Ocean rock • More suitable marine • Hardwater cichlids brackish - Free postage - New and Used
Aquarium slate fish tank - slate, - £17.99
Black slate 3kg • Perfect creating caves • Lining back wall - Free postage - New and Used
Black slate 3kg • Perfect creating caves • Lining back wall - Free postage - New and Used
Natural aquarium grey - 18.5, kg - £31.90
Enhance beauty your • Malawi fish tank • This natural grey - Free postage - New and Used
Enhance beauty your • Malawi fish tank • This natural grey - Free postage - New and Used
Grey natural stone - grey, - £25.79
Provides ideal hideaway • Cave swim through • Grey natural stone - Free postage - New and Used
Provides ideal hideaway • Cave swim through • Grey natural stone - Free postage - New and Used
Dragon rock aquarium fish tank - rock, - £5.99
Item decorative rock • Aquarium vivarium application • Marine tropical fish - Free postage - New and Used
Item decorative rock • Aquarium vivarium application • Marine tropical fish - Free postage - New and Used
Aquarium rock cave fish - aquarium, - £21.59
Rainbow slate 3kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Rainbow slate 3kg • Set thin tiles • Ready layed aquarium - Free postage - New and Used
Natural ocean rock small - natural, - £59.95
Due item being • Natural based weight • You may get - Free postage - New and Used
Due item being • Natural based weight • You may get - Free postage - New and Used
Fish tank ornaments for - ornaments, - £7.99
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
Gray seiryu scenery stone - gray, - £4.49
Seiryu stone features • Unique textures shapes • That bring realistic - Free postage - New and Used
Seiryu stone features • Unique textures shapes • That bring realistic - Free postage - New and Used
Natural ocean rock - natural, - £59.95
Clean safe properties • Ocean rock make • Suitable marine reef - Free postage - New and Used
Clean safe properties • Ocean rock make • Suitable marine reef - Free postage - New and Used
Dragon rock stone ohko - dragon, - £59.99
Ideal aquascaping great • Base material rocky • Stone aquarium decoration - Free postage - New and Used
Ideal aquascaping great • Base material rocky • Stone aquarium decoration - Free postage - New and Used
Large rock mountain aquarium - rock, - £45.98
- Free postage - New and Used
- Free postage - New and Used
Aquarium rock seiryu fish tank - rock, - £97.19
Grey mountian rock • 20kg set select • Carefully selected pieces - Free postage - New and Used
Grey mountian rock • 20kg set select • Carefully selected pieces - Free postage - New and Used
Aquarium seiryu rock fish - seiryu, tank - £24.83
Grey mountian rock • 3kg set select • Carefully selected pieces - Free postage - New and Used
Grey mountian rock • 3kg set select • Carefully selected pieces - Free postage - New and Used
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Everything you need to know about fish rocks
Whether you are looking for a brand-new or second-hand fish 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 £2.95, while premium listings can reach £189.99 — giving you a wide budget spread to work with. The average price of £47.01 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.