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Large 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.

Other/Mixed Breed fish fire eel - Advert 1
1

fire eel

Other/Mixed Breed

7 monthsAge
£120Price

bought a fire eel not knowing how fast or large they can grow and currently not planning on getting a bigger tank

Merthyr TydfilMerthyr Tydfil County Borough
ADVANCED
4

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

BuckinghamBuckinghamshire
Other/Mixed Breed fish Oscar and ciclid - Advert 3
4

Oscar and ciclid

Other/Mixed Breed

8 monthsAge
£0Price

Tropical large fish free to good home, Oscar hasout grow our sons 5ft tank, would need to go to large fish tank. Collection only

HerefordHerefordshire
Other/Mixed Breed fish Beautiful Guppies in Chiswick - Various Colours - Advert 4
101

Beautiful 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
LondonGreater London
Other/Mixed Breed fish COMPLETE 160L Professional Aquascape Setup - Advert 5
152

COMPLETE 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

WestburyWiltshire
PRO
51

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

LondonGreater London

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.