Selling My Guppies

Since 2017, I have been writing about breeding guppies. Finally, I have a stock of select older breeders from 4 different “families” that are producing progeny worth selling. Members of the families are from different matings. To avoid inbreeding, none of the pairings are between full siblings. These guppies have a lifespan 2-3 times better than when I started, and in my humble opinion, are gorgeous. Granted, it is easy to talk about how great your guppies are, but will they do okay in the hands of others?? After selling my guppies to a local aquarium store, the owner praised them with the following comment, “Your guppies don’t die.” Below is a video of one breeder family (4 females and 3 males).

My Rainbow guppies in a 10 gal with no filter or aeration. Just plants. These guppies are breeders selected for their beauty and longevity.

Guppy Genetics

Revision of 2020 Guppy Genetics Article

I revised my 2020 article ‘Breeding Guppies: Genetic Pitfalls and Successes‘.  Revision containsapril-18_2018-1 same basic material, but I simplified article.  I spent more time discussing popular mutations that can perplex beginners.  And I down-sized a complicated discussion on the genetics of swordtail guppies.   It was not that relevant in successfully outcrossing my beautiful delta-tail females (Photo) with male swordtail guppies.   These outcrosses were wildly successful and I had no trouble breeding out the swordtail trait.

Guppy Genetics 101

Genetics of breeding fancy guppies for fitness, disease resistance, and beauty


Breeding Guppies: Genetic Pitfalls and Successes (10 page article) describes my experiences with crossing various guppy strains–Metalheads, Blue Grass, pet shop guppies, swordtail guppies, etc.  Avoid the genetic problems I encountered as a beginning breeder.  Follow the story, which includes basic genetic explanations, to a happy ending–the creation of novel and beautiful phenotypes.  (Article revised March 2022)