Full red delta guppies

emeraldking

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Some photos of my albino full red & blackeyed full red guppies...
 

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Vey pretty fish. I can't get my head around how many tanks it must take to separate the fish and see if they breed true. How does one even do it at all. How much can you tell about a female genes until she has offspring?
 
The variety of fish you raise is impressive. How many tanks do you maintain.
I've got 80+ tanks indoors. And during the better months, also an extra 10 outdoor tubs/tanks.
Vey pretty fish. I can't get my head around how many tanks it must take to separate the fish and see if they breed true. How does one even do it at all. How much can you tell about a female genes until she has offspring?
Well, when you do linebreeding, one should already need more tanks. Once it breeds true, you remain doing linebreeding or do mass reproduction. But when you choose to do mass reproduction, selection in every single batch/generation should be at hand to keep the quality up.
If you use a random female, you need to know her genetic background and don't rely on her phenotype (appearance). For a lot of people who try to do a serious attempt to breed for certain traits, only take the phenotype of the fish as a reference. In most cases, the outcome of the offspring won't match the desired phenotypes you had in mind. A certain genotype does not have to match the same genotype. If you don't know the genetic background beforehand, there's no way to give a proper answer on how the offspring will look like if you'll also use a random male. A lot of people think that most guppy traits are Y-linked. This means that it's always the male who's responsible for the phenotypical outcome of the offspring. That remark is an urban story. For also females can have the dominant traits. It depends on the strain and the traits themselves wether one or both of the sexes will carry the dominant traits in comparison to the other traits (recessive). And will it be recessive, double recessive, triple recessive, dominant, double dominant, triple dominant or autosomal.
 

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