Inbreeding Guppies

[Symo420]

I've been breeding guppies for almost a year now, selling majority of the new fish or moving them on (aside from a few special ones). I now have about 12 males, 3 with the colour and patterns I'm planning to breed. Females however, I have the original mother and only 1 of the daughters that actually lived up to the desired colour patterns. From what I've read, mother/son and father/daughter is acceptable, but how much further is it safe to go? Would a brother/sister combo be so bad, even though the female has good colour in her bloodline?

Anyone with long-term guppy experience, please help me out!

 

[fish48]

inbreeding is ok let them breed as they like if you get any deformed guppy’s get rid of them don’t let them breed ,you can go on inbreeding them for years and years let them breed thay will be fine

 

[OldMan47]

If you remove any defective fry, inbreeding is the way to improve a line. If you do not remove defectives, OMG (see the UK royal family history for a reference.)

 

[Symo420]

If you remove any defective fry, inbreeding is the way to improve a line. If you do not remove defectives, OMG (see the UK royal family history for a reference.)

I love it, this actually made me laugh!
This is exactly what I wanted to hear, thanks guys. The type I'm breeding is a snakeskin flame-tail, they should look amazing once I have many, and I might get more than $1 each for them. I've also got 8 male double sword endlers, which I might start up an endler/shrimp tank in my 40L.

 

[Sask Aquarist]

A small sum of calculations I found to give you an idea of the genes that are transferred between Generations.
Each step represents how much genes each generation has. For instance the Father/Daughter strain would have roughly 25% the same genes if bred together.




Father/daughter, mother/son or brother/sister → 25%
Grandfather/granddaughter or grandmother/grandson → 12.5%
Half-brother/half-sister → 12.5%
Uncle/niece or aunt/nephew → 12.5%
Great-grandfather/great-granddaughter or great-grandmother/great-grandson → 6.25%
Half-uncle/niece or half-aunt/nephew → 6.25%
First cousins → 6.25%
First cousins once removed or half-first cousins → 3.125%
Second cousins or first cousins twice removed → 1.5625%
Second cousins once removed or half-second cousins → 0.78125%
Third cousins or second cousins twice removed → 0.390625%
Third cousins once removed or half-third cousins → 0.195%

 

[Symo420]

A small sum of calculations I found to give you an idea of the genes that are transferred between Generations.
Each step represents how much genes each generation has. For instance the Father/Daughter strain would have roughly 25% the same genes if bred together.

Thanks for that resource mate. I guess I'll throw my males into the breeding tank and hope for the best