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Aquariums & Fish Tanks
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About Aquariums & Fish Tanks
Cold water aquariums
Owning fish is so rewarding, you'll naturally want to make sure they've got the best possible environment - cue our selection of cold water fish tanks! We have an array of styles that'll guarantee you find your fish the perfect home.
If you're new to fish-keeping - we suggest looking to our cold water fish tank kits. Containing everything you need to set up an aquarium in your home (apart from the fish!), these kits are the perfect option for beginners, be it for yourself or your little one.
Looking for a tank upgrade? We've got you covered - from small cold water fish tanks perfect for housing a few fish to large cold water fish tanks that you'll fit an entire shoal into, you'll find it all here. We love the LED-lit cold water fish tanks on offer; not only will your fish love the light (as will any plants you pop in), they make for an eye-catching focal point in any room.
Tropical fish are some of the most beautiful pets you could keep, so it seems only fitting that they have a home to match! Brimming with simply stunning options in all shapes and sizes, delve into OnBuy's collection of tropical fish tanks - your perfect aquarium awaits...
Our large tropical fish tanks are ideal for those of you looking to keep bigger species or an entire fishy family - not to mention, they'll provide a showstopping display wherever you pop them! Our top pick? The LED lit tropical fish tanks - they're especially mesmerising in dark rooms.
If you're short on space, or just testing the waters of tropical fish-keeping, be sure to explore our small tropical fish tanks. Why not brighten up your work space with our desktop tropical fish tanks? Not only are they gorgeous, fish are incredibly soothing to watch - perfect for taking a screen break and keeping stress levels down!
Bored of the traditional rectangular tank? Our edit offers unique tropical aquariums that'll create a truly dynamic display; will you be won over by our hexagonal tropical fish tanks, or perhaps the oval tropical fish tanks? It's a tough choice!
For the perfect way to display your salt-water fish, coral, and even anemone - look no further than OnBuy's range of marine fish tanks. We've got a range of styles and sizes to choose from, and plenty of equipment to complete your set-up!
From small marine fish tanks perfectly suited to species like the clownfish all the way up to large marine fish tanks that'll house your angelfish with no fuss, we've got you covered. Not sure where to begin? Check out our marine fish tank kits - they'll give you all the basics needed to set up your very own salt water fish tank!
We've also got an essential round up of marine fish tank equipment to ensure your fish stay happy and healthy. In our edit, you'll find marine fish tank protein skimmers that'll effortlessly remove waste from the water, an array of marine fish tank pumps to keep the water circulating properly, and of course - plenty of marine fish tank reef salt to help recreate your aquatic friends' natural environment.