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
We have for sale 13-14" Peacock Bass £120 7-8" Tiger Oscar £50 7-8" Chilli red Oscar £90 BOTH OSCARS FOR £120 2x 4-5" Bush Fish/Climbing Perch £40 ALL FOR £250 Must bring own buckets/containers for
1Other/Mixed Breed
Full marine fish tank set up that requires some attention to get back to standard. Lovely royal gramma. The fish tank is a fluval evo marine tank 52l. It includes external light, heater and pump. The
1Other/Mixed Breed
Our Fish won’t stop breeding. Weve had to buy a seperate tank for the babies and there are just too many for us to cope with. Will most definitely do deals for anyone Who'd like a dozen! Females £2 e
Other/Mixed Breed
I have for sale 5 axolots. Price is per unit not all 5. There is a wild female. 2 Dirty Lucis female? Golden/orange sex u/k this one had some issues with limbs but these are now growing nicely. Male g
Other/Mixed Breed
Breeding pair of rays. Female is a black diamond x henlie Male is a het pearl. Both are at least 18inch disk and with the tail over 24inch. They have produced see photos. Both in perfect healt
8Other/Mixed Breed
Selling my solid oak cabinet fishtank in excellent condition everything you need including external filter, air pump 3 fantails, 2 axolotl (1 albino 1 Black approximately 4 years old) all tank decorat
3Other/Mixed Breed
3 month old polar blue parrot fish from my breeding pair, all eating well and big enough for new homes. £3 per fish 🐠