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Other/Mixed Breed Fish for sale

9 Fish found

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.

Other/Mixed Breed fish Mosaic Fan Tailed Guppies - Advert 1
2

Mosaic Fan Tailed Guppies

Other/Mixed Breed

4 weeksAge
£15Price

Gorgeous silver/blue mosaic fan tailed guppies, not yet sexed at 4.5 weeks old, looking to sell in batches of 10 in Suffolk…

Haverhill, Suffolk (0.1mi)
Other/Mixed Breed fish Peacock bass - Advert 2
12

Peacock bass

Other/Mixed Breed

1 yearAge
£40Price

Lovely fish just cant keep anymore in my tank with the fish i want too get and in need of new waters

Bury Saint Edmunds, Suffolk (17mi)
Other/Mixed Breed fish Endler Guppies - Advert 3
21

Endler Guppies

Other/Mixed Breed

8 weeksAge
£1Price

X6 Endler Guppies for sale. Bought these at the beginning of the week not realising one of our other fish was about to have fry! £1 each. Collection from CO12 area

Harwich, Essex (36.4mi)
Other/Mixed Breed fish Fluval168L Aquarium+Cabinet+Fluval 407 Filter - Advert 4
42

Fluval168L Aquarium+Cabinet+Fluval 407 Filter

Other/Mixed Breed

2 yearsAge
£250Price

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 London (39.7mi)
Other/Mixed Breed fish Axolotl babies - Advert 5
9

Axolotl babies

Other/Mixed Breed

3 monthsAge
£20Price

Axolotl babies for sale. Parents are pictured, leucistic male and wild type female. Healthy clutch, feeding on frozen bloodworm and artemia (brine shrimp) Interesting morphs and markings starting to b

Stevenage, Hertfordshire (29.9mi)
Other/Mixed Breed fish 1 male molly and 3 guppyxmolly mix baby’s - Advert 6
2

1 male molly and 3 guppyxmolly mix baby’s

Other/Mixed Breed

5 weeksAge
£0Price

Baby’s born around the 13th July 2026 there mix of female glass belly guppy’s and a black male guppy there heathy and I can’t take care of them as I’m not a professional I just know the basics. the hy

Wickford, Essex (33.3mi)
Other/Mixed Breed fish X2 axolotls - Advert 7
6

X2 axolotls

Other/Mixed Breed

2 yearsAge
£300Price

Polly (pink axolotl) Mexican axolotl 2.5 years old Pongo(black axolotl) melanoid axolotl 2 years old Tanks, filters, food, tap water conditioner and decor included. Selling due to going to Aust

Stowmarket, Suffolk (26.1mi)
Other/Mixed Breed fish Mini Marble Stingray - Advert 8
3

Mini Marble Stingray

Other/Mixed Breed

10 weeksAge
£250Price

Female. Pictures of parents on request both come from good stock and good specimens. Baby was nipped by father at birth as can be seen in photos however is healing well, ready for new waters.

Peterborough, Peterborough (44.4mi)
Other/Mixed Breed fish 90l spacer aquarium including fish - Advert 9
5

90l spacer aquarium including fish

Other/Mixed Breed

1 yearAge
£220Price

90l superfish scaper aquarium with plants light heater and external filter including cabinet. Needs good home.

London, Greater London (46.4mi)

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.