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.
5Other/Mixed Breed
Can sell with your without fish Full set up, heater, filter, live plants, artificial plants, food Fish: Gourami 3 x tetras Pleco Glass cat fish 2 x guppies 2 x shrimp A few snails Current substrate
61Other/Mixed Breed
Unsexed axolotyls as they cannot be sexed until they are approximately 1yr old. £15 Each. Two wild (brown) colour. One leucistic colour which is albino (white) with black eyes. Mum and Dad shown in ph
6Other/Mixed Breed
I got 4 ft fluval 240 litres for sale. Fish is community, small. Got 3 different species of Danios about 10 in total 4 keyhole cichlid About 6 silvertips Common pleck about 10cm Rainbow fish And pe
6Other/Mixed Breed
Big Size silves Dollar Fish , healthy & nice fish 15 cm from moth to tail, shiny silver colour for bargain price.
7Other/Mixed Breed
Huge fish tank, with cupboard storage, all accessories, thermometer/heater, filter and fish included. Great condition, 2 breeding pairs of fish. Includes 2 plecs, 5 different parrot fish, electric blu
2Other/Mixed Breed
They are loved but with work commitments and kids cannot keep them on Free to a good home, must be able to collect B28 area Birmingham
3Other/Mixed Breed
Multiple guppys for sale Tank clearance Need to see them gone. Tiny to adults Mostly male Various colours Various prices but have put £2 each
10Other/Mixed Breed
Puffer fish, loach, minnows, spiders, dart frogs, scorpions, and all the tanks and heating. Logs plants and can take the stand if required, selling very cheep as its an emergency
12Other/Mixed Breed
tank included, will give 2 weeks supply of food ,very low maintenance and good for first pets, they are very active open to sensible offers
1Other/Mixed Breed
very active fish dose not grow too big and is around 3 inches now eats well and healthy although might be a little nervous in a new home so colours will pop wen settled
4Other/Mixed Breed
250l fish tank and stand including fluval heater and fluval filter 307, co2 tank ,fluval smart bluetooth light plus various fish and accessories looking for 200
6Other/Mixed Breed
Young guppies £1 each got loads available