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Only guppies breed with guppies naturally.
As do all other animals, guppies breed, unless the female has been purchased from a pet store that used sterilization chemicals on it to sterilize it and to change the color to "make it more attractive".
Don't own female guppies if you don't want youngsters.
id say guppies, they breed like rabbits
Guppies don't really "like" other guppies. They are pretty stupid animals offense to you guppy lovers. All they do is breed.
guppies there like rabbits and bettas are very hard to breed
no chance they find their own companion and breed this can be done only scientifically at laboratory levels
They are livebearers and breed like guppies.
no cories cant interbreed with any of those fish. bronze cories breed with bronze cories
Guppies are the one of the easiest pet fish to breed in captivity. They do it all themselves, the only thing you may have to do is take the babies out and put them in a different container because the parents may eat them. I found that none of my guppies seem to eat the babies.
I'm not sure but some people say you should or the baby guppies will breed.
I doubt that they can breed, a lot more depends on if two fish can breed than just their size, as far as I know guppies can only breed with other guppies.