With Other/Mixed Breed Fish for sale
Mixed breed or hybrid aquarium fish are produced when two closely related species cross-breed, either naturally in a shared tank or through deliberate selective breeding. Some of the most familiar hybrid fish in the hobby include the Parrot Cichlid, the Blood Parrot, and the Flowerhorn Cichlid, all of which were developed through selective hybridisation for their unusual body shapes and vivid colouring. Natural hybrids also occur among livebearers such as guppies, mollies, and swordtails, which can readily interbreed when housed together, producing offspring with varied fin shapes and colour patterns.
Hybrid fish can display a wide range of appearances and temperaments depending on their parent species, and they often exhibit hybrid vigour — a tendency towards robust health and faster growth than either parent line. However, they are generally not suitable for breeding programmes aimed at maintaining pure species lines, and many aquarium societies discourage their sale alongside pedigree stock. For casual fishkeepers, mixed breed fish can be excellent and characterful aquarium inhabitants, offering unique appearances and interesting behaviour at competitive prices. As with all aquarium fish, their care requirements depend on the parent species involved, so researching the likely traits of both parent breeds — water chemistry preferences, diet, tank size, and compatibility with other fish — is important before purchase.
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12Fishtank complete with fish
Other/Mixed Breed
2 weeksAge
£365Price
Beautfully established fluval shaker tropical tank Comes complete fully stocked with Ballon mollies ( plus babies) Platies (plus babies) Mollies (plus babies) Neons Danios 2 algae cleaner fish Shrim
Mablethorpe, Lincolnshire
3Rope Fish
Other/Mixed Breed
9 monthsAge
£15Price
Beautiful rope fish for sale. Awesome addition to any tank. We have 5 black neons that live with it in the tank that are for sale as well. Ropefish is approximately 22-24cm long. Collection from E
Bristol, Bristol City
2Aquarium
Other/Mixed Breed
5 weeksAge
£0Price
****FREE TO A GOOD HOME**** I AM MOVING AND UNABLE TO TAKE THIS. SO YES, THIS IS FREE!!! THE WHOLE AQUARIUM, THIS INCLUDES ABOUT £300 WORTH OF FISH (ANGELS, PLECCOS, NEONS, BLACK SHARK, CATFISH....
Ipswich, Suffolk
PRO
Fish and tank set up
Other/Mixed Breed
13 weeksAge
£60Price
There is a mix of guppies and a snail and shrimps in the tank. Comes with filter, temperature thermostat, heater, air pump
Harlow, Essex
2Guppies for sale
Other/Mixed Breed
1 weekAge
£3Price
We started with 5, and now we have over 50! We need some guppies going to a good home. have a range of ages from babies to adults!
Swanley, Kent
ADVANCED
Tropical Fish Tank & Fish
Other/Mixed Breed
2 yearsAge
£250Price
Fluvel Flex LED 123L tank with 8 fish including large sucker fish. Comes with new heater, new filters & transport bags
Buckingham, Buckinghamshire
6Juwel Trigon 190 Liters Complete setup
Other/Mixed Breed
1 weekAge
£350Price
Comes with lots of decors It does have a few Guppies and one gourami. Heater air pump gravel Fluval 206 external filter (no media trays) working well without trays
Watford, Hertfordshire
10240lt pro aquascape aquarium + fish
Other/Mixed Breed
4 monthsAge
£700Price
Lovely mature aquarium aquascape for sale due to sudden house move. It's a bargain because it needs to go soon... Sad to see it go. Contains everything: Aquarium 240lt (Length : 120 cm, Width : 40
ID Verified
Carlisle, CumberlandADVANCED
Full tank set up
Other/Mixed Breed
14 weeksAge
£50Price
I have a Juwel Rio 125 LED tank bought March 2025. All fish, nerite snails, rabbit snail, shrimp, plants, accessories are included along with any left over food, filters and the like as I sadly don't
Devizes, Wiltshire
101Beautiful Guppies in Chiswick - Various Colours
Other/Mixed Breed
4 monthsAge
£1Price
I have two well-maintained TerrAquariums at home with a thriving community of guppies. I started with around 50, and now have over 200 healthy, vibrant fish in many different colours and patterns. I’
ID Verified
London, Greater London
31Fish tank with rocks filter and male guppies
Other/Mixed Breed
4 weeksAge
£80Price
Great first start tank comes with rocks filter brand new and male guppys beautiful colours fish tank brand new would be great for a first tank
London, Greater London
PRO
Tank with stand and tropical fish
Other/Mixed Breed
6 weeksAge
£300Price
I have a complete set up fully established fish tank a Roma 240L with a mix of fish plus 2 rare plecos one tiger and one leopard. A variety of shrimp and tetras , its a great size tank i have alot of
ID Verified
Dalkeith, Midlothian
152COMPLETE 160L Professional Aquascape Setup
Other/Mixed Breed
4 monthsAge
£350Price
For sale is a premium, fully established 160L professional aquascaping setup. This is a high-spec "plug-and-play" system featuring top-tier equipment and a healthy, vibrant community of fish and plant
Westbury, Wiltshire
82Fluval168L Aquarium+Cabinet+Fluval 407 Filter
Other/Mixed Breed
2 yearsAge
£400Price
Open for ANY offers Selling my Fluval 168 litre aquarium with matching cabinet, fully established and running. Includes: • Upgraded Fluval 407 external filter (high-performance filtration) • Built
ID Verified
London, Greater LondonPRO
305L Aqua One Aquarium + 300 Fish Full Setup
Other/Mixed Breed
1 yearAge
£850Price
🐠 Premium Full Aquarium Setup for Sale – Aqua One OakStyle 305L – Complete Professional Package Because I have work outside London and it will be very difficult to move such a large setup safely, I a
London, Greater London
5Axolotl Babies
Other/Mixed Breed
7 weeksAge
£25Price
Babies from our (unrelated) leucistic and wild type axolotls. Hatched over the last week (from 26/03) and all are individually tubbed, eating baby brine shrimp with water changed daily. Please not
ID Verified
Aylesbury, Buckinghamshire
81120L Fully established Tropical fish tank
Other/Mixed Breed
3 yearsAge
£500Price
120L Fully established fish tank with various live coral and tropical fish. Fish; • 1x Clown fish • 1x Blenny • 1x pistol shrimp • 1x goby • 1x hermit Crab • 1x Royal Gramma • 1x Blue Chromi
Manchester, Greater Manchester
1Fish with fish tanks
Other/Mixed Breed
8 weeksAge
£10Price
We are selling two tanks with tropical fish. There are guppies, neons and some others I don’t know the name of. They both need to go together. The tanks are in need of a clean as the owner has left th
Aylesbury, Buckinghamshire
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FAQs
Fish do rest, but not in the same way as mammals. They typically hover in place or find a sheltered spot to conserve energy, and they don't close their eyes since they have no eyelids.
