Custom aquariums
Custom aquariums for sale on Ireland's largest auction and classifieds sites
Micro reef ready tank 3 - ready, - £169.99
Micro reef ready • Tank includes built • Overflow plumbing set - Free postage - New and Used
Micro reef ready • Tank includes built • Overflow plumbing set - Free postage - New and Used
Glass aquarium gallon - 5.5, - £45.00
Clean but used • Some sand residue - Free postage - New and Used
Clean but used • Some sand residue - Free postage - New and Used
Aqueon aquarium aag29024 glass - aqueon, - £61.97
Features clear vinyl • Back strip that • Can easily cut - Free postage - New and Used
Features clear vinyl • Back strip that • Can easily cut - Free postage - New and Used
Custom aquariums h2o - custom, - £90.00
New custom overflow • Can placed long • Ways against edge - Free postage - New and Used
New custom overflow • Can placed long • Ways against edge - Free postage - New and Used
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Aqueon hinged glass tops - aqueon, - £69.99
Most boxes have • Storage wear but • Everything inside new - Free postage - New and Used
Most boxes have • Storage wear but • Everything inside new - Free postage - New and Used
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48 listings · from £5.97 · avg £335.53
⚠️ These listings were last updated more than 21 days ago.
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Browse 48 custom aquariums listings currently in our index. Prices range from £5.97 to £8111.75, with an average of £335.53. 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 custom aquariums →
Rectangular glass aquarium - rectangular, - £377.08
Efficient silent aquarium • Canister filter ultra • Quiet pump water - Free postage - New and Used
Efficient silent aquarium • Canister filter ultra • Quiet pump water - Free postage - New and Used
Top fin custom colorflow - colorflow, 3 - £51.69
Same day shipping • Ordered before 12pm • Est monday friday - Free postage - New and Used
Same day shipping • Ordered before 12pm • Est monday friday - Free postage - New and Used
Custom heavy duty - duty, aquarium - £35.00
Price includes one • Divider - Free postage - New and Used
Price includes one • Divider - Free postage - New and Used
Custom cut cholla wood pick - custom, - £5.97
Beautiful pieces this • Cholla has been • Cleaned all thorns - Free postage - New and Used
Beautiful pieces this • Cholla has been • Cleaned all thorns - Free postage - New and Used
Custom solid polycarbonate - solid, - £250.00
Custom solid polycarbonate • Clear aquarium lids • Are fit perfectly - Free postage - New and Used
Custom solid polycarbonate • Clear aquarium lids • Are fit perfectly - Free postage - New and Used
Gallon glass fish - gallon, easy - £64.95
Free play you • Can use your • Ideal landscape goldfish - Free postage - New and Used
Free play you • Can use your • Ideal landscape goldfish - Free postage - New and Used
Custom fiberglass aquarium - custom, - £8111.75
Build custom aquariums • Over 400 different • Standard molds our - Free postage - New and Used
Build custom aquariums • Over 400 different • Standard molds our - Free postage - New and Used
Versatile clear glass aquarium - clear, - £18.85
Engineered effectively reduce • Evaporation enhance safety • Your aquatic friends - Free postage - New and Used
Engineered effectively reduce • Evaporation enhance safety • Your aquatic friends - Free postage - New and Used
Custom top lid for waterbox - lid, - £325.00
Like new top • Lids acrylic mesh • Custom evaporation shield - Free postage - New and Used
Like new top • Lids acrylic mesh • Custom evaporation shield - Free postage - New and Used
Seachem tidal hang back - seachem, - £38.00
Seachem tidal hob • Filter gallon tanks • Good freshwater saltwater - Free postage - New and Used
Seachem tidal hob • Filter gallon tanks • Good freshwater saltwater - Free postage - New and Used
Fish tank gallon - fish, tank, - £94.29
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
All glass aquarium versa top - all, - £44.99
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Gallon glass fish - gallon, - £66.56
Play you can • Use your imagination • Ideal landscape goldfish - Free postage - New and Used
Play you can • Use your imagination • Ideal landscape goldfish - Free postage - New and Used
Custom order pricing - order, for - £189.00
Custom frag rack • Orders - Free postage - New and Used
Custom frag rack • Orders - Free postage - New and Used
Premium custom aquarium - aquarium, sump - £1000.00
This sump was • Used 300 gallon • Aquarium features 1.5 - Free postage - New and Used
This sump was • Used 300 gallon • Aquarium features 1.5 - Free postage - New and Used
Fish breeding box - breeding, - £12.79
Datoo fish breeding • Box how protect • Will give you - Free postage - New and Used
Datoo fish breeding • Box how protect • Will give you - Free postage - New and Used
Clear view gallon frameless - clear, 3 - £83.59
Creative freedom unleash • Your imagination create • Dreams whether tranquil - Free postage - New and Used
Creative freedom unleash • Your imagination create • Dreams whether tranquil - Free postage - New and Used
Aquarium decoration custom - aquarium, - £18.98
Custom clay flower • Pot saucers usa • Made special note - Free postage - New and Used
Custom clay flower • Pot saucers usa • Made special note - Free postage - New and Used
All glass aquarium - glass, versa - £18.99
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Fish tank gallon - tank,, - £89.99
Fish tank aquarium • Why choose this • Advanced filtration multi - Free postage - New and Used
Fish tank aquarium • Why choose this • Advanced filtration multi - Free postage - New and Used
Adjustable platic grip panel - platic, - £15.03
Used fish tank • Plastic egg crate • Aquarium divider usage - Free postage - New and Used
Used fish tank • Plastic egg crate • Aquarium divider usage - Free postage - New and Used
Fish tank - tank, aquarium, - £94.04
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Fluval plant marine 0 - plant, & - £15.00
Fluval plant marine • 3.0 2.0 led • Custom aquarium light - Free postage - New and Used
Fluval plant marine • 3.0 2.0 led • Custom aquarium light - Free postage - New and Used
Aquarium canopy hood 75 - canopy, - £250.00
One kind hand • Made electrically enhanced • Cedar aquarium canopy - Free postage - New and Used
One kind hand • Made electrically enhanced • Cedar aquarium canopy - Free postage - New and Used
Pcs aquarium fish tank - 12, - £36.84
Pcs aquarium fish • Tank divider plastic • Filter bottom tray - Free postage - New and Used
Pcs aquarium fish • Tank divider plastic • Filter bottom tray - Free postage - New and Used
All glass aquarium aag29016 - all, - £39.42
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
300 gallon acrylic aquarium - gallon, - £3300.00
Acrylic aquarium build • Standard custom condition • New tanks are - Free postage - New and Used
Acrylic aquarium build • Standard custom condition • New tanks are - Free postage - New and Used
Dual aquarium light - dual, - £129.99
Superblue 460 super • Reef fresh saltwater • Violet actinic 420 - Free postage - New and Used
Superblue 460 super • Reef fresh saltwater • Violet actinic 420 - Free postage - New and Used
Fish tank gallon - gallon, - £111.99
Aquarium lid feeding • Port which makes • Easy prevents fish - Free postage - New and Used
Aquarium lid feeding • Port which makes • Easy prevents fish - Free postage - New and Used
Fish tank gallon - fish, - £89.99
Fish tank aquarium • Why choose this • Advanced filtration multi - Free postage - New and Used
Fish tank aquarium • Why choose this • Advanced filtration multi - Free postage - New and Used
Aquarium decor custom boxes - decor, - £15.00
Provides beneficial antioxidants • Fish shrimp stabilizing • Capabilities yummy snack - Free postage - New and Used
Provides beneficial antioxidants • Fish shrimp stabilizing • Capabilities yummy snack - Free postage - New and Used
All glass aquarium aag29202 - all, - £18.10
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Versa top features • Clear vinyl back • Strip that can - Free postage - New and Used
Aquarium probe holder aqua - probe, - £25.00
Compatible all water • Types this custom • Cradle model ensures - Free postage - New and Used
Compatible all water • Types this custom • Cradle model ensures - Free postage - New and Used
Hygger custom led aquarium - hygger, - £100.78
- Free postage - New and Used
- Free postage - New and Used
Ultra white glass betta - white, - £59.80
Ultra white glass • Betta aquarium starter • Fish tank - Free postage - New and Used
Ultra white glass • Betta aquarium starter • Fish tank - Free postage - New and Used
Rimless glass fish tank easy - tank, - £63.98
Special feature rimless • Thoughtful service provide • Aquarium fish tank - Free postage - New and Used
Special feature rimless • Thoughtful service provide • Aquarium fish tank - Free postage - New and Used
Inch all glass aquarium - "12-inch, - £17.99
Easy access larger • Glass sections allow • Maintenance your aquarium - Free postage - New and Used
Easy access larger • Glass sections allow • Maintenance your aquarium - Free postage - New and Used
Fish tank gallon - tank,, - £94.86
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Custom aquarium backgrounds - aquarium, - £22.99
Aquarium backgrounds file • Upload this anti • Glare material smooth - Free postage - New and Used
Aquarium backgrounds file • Upload this anti • Glare material smooth - Free postage - New and Used
Fish tank gallon - tank,, - £97.35
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Fish tank 2.4 • Starter kit smart • Humidifier temperature display - Free postage - New and Used
Ultra clear gallon - ultra-clear, tank - £97.92
Combining functionality style • This stunning aquarium • Both aesthetics optimal - Free postage - New and Used
Combining functionality style • This stunning aquarium • Both aesthetics optimal - Free postage - New and Used
Aquarium custom designs - aquarium, - £9.95
Use only full • Gauge high quality • Steel glass construction - Free postage - New and Used
Use only full • Gauge high quality • Steel glass construction - Free postage - New and Used
Aqueon aquarium aag29024 glass - aqueon, - £64.99
Features clear vinyl • Back strip that • Can easily cut - Free postage - New and Used
Features clear vinyl • Back strip that • Can easily cut - Free postage - New and Used
Try this: deltec protein skimmer | desktop fish tank | discus aquarium | dry reef rock | ecotech | ecotech radion | eheim 2080 | eheim 2213 | eheim 2215 | eheim aquarium
Shop by budget
Everything you need to know about custom aquariums
Whether you are looking for a brand-new or second-hand custom aquariums, 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 £5.97, while premium listings can reach £8111.75 — giving you a wide budget spread to work with. The average price of £335.53 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.