Tag Archives: breeding

Photo of two three-month old male breeder Bronze Sailfin Mollies. Their gonopodia are just developing and the sailfin hasn't developed as yet.

Developing a Strain from a Single Fish

Photo: Two very young male Bronze Sailfin Mollies showing the improved coloration I selected for. They are too young to sport nice sailfins, but they grew up with large dorsals. As evidence of their youth, look at their gonopodia (anal fin), which are just beginning to develop. How many times have you seen a single, […]

Photo of two Amazon mollies, Poecilia formosa.

Poecilia formosa – Amazon Molly

Photo: Two Poecilia formosa, Amazon mollies, collected from Coleto Creek at Highway US 77 in Victoria County, Texas.   December 12, 2017, four of us plus two German Shepherds went collecting on Coleto Creek in Victoria County, Texas (see my blogs: http://goliadfarms.com/coleto-creek-collecting-trip-december-21-2017/ and http://goliadfarms.com/lucania-goodei-the-blue-fin-killifish/). During that trip, we collected a unique molly, Poecilia formosa, the […]

Photo of a group of Lucania goodei from Coleto Creek, Texas in a sorting jar.

Lucania goodei, the Blue Fin Killifish

Photo: A group of Lucania goodei, the bluefin killifish, in a sorting jar.   While collecting fish in Coleto Creek in Victoria County, Texas (I’ll be blogging about this collecting trip shortly) with our nephew (Darin), his wife (Anne), and three-year-old daughter (Sylvie), Darin picked a fish out of the seine net and asked me […]

Female Red Tuxedo Lyretail Swordtail.

Fancy Red Tuxedo Swordtails

Photo: Female Red Tuxedo Lyretail Swordtail. As is typical of our strain, females don’t have as bright red coloration as males. We’ve started working on adding three fancy fin types, lyretail, hifin, and plumetail to each of our commercial swordtail, maculatus, and variatus lines. I’m going to use our Red Tuxedo Swords to demonstrate how […]

Photo of an Orange Freckled Swordtail male.

Orange Freckled Swordtails

Photo above is a male Orange Freckled Swordtail. The grid behind him is in inches and shows his size. Those of you who have read many of my past articles and blogs know that a common theme throughout my writings is serendipity (could also be called “luck”). This interesting fish arose from a mistake. The […]

Photo of a Giant Sailfin Molly male.

Blue and Giant Mollies

  Photo: A male Giant Sailfin Molly showing his size against a one-inch grid. About four years ago, I wrote an article about my efforts to produce a blue molly. A molly blue enough for my tastes doesn’t exist. This blog will provide an update. First, I’ll summarize the article. In 1998, I crossed a […]

Photo of a group of Blue Opal Maculatus showing two color variations.

Developing a Hifin Plumetail Blue Opal Maculatus

Photo: A group of Blue Opal Maculatus Years ago I created what I called a Hifin Blue Opal Maculatus, as its name implies a maculatus-type platy. I wrote about creating this fish for Tropical Fish Hobbyist. To read the TFH article see: http://www.tfhmagazine.com/details/articles/the-blue-opal-platy-serendipity-in-breeding.htm. I’ll provide a synopsis of the development of this fish below. Long […]

Photo of male silver lyretail molly.

Fish Breeding, Introducing Recessive Gene

Photo is a male silver lyretail molly displaying a nice sailfin. This is the fish you want to create starting with a male silver sailfin molly and female green lyretail sailfin mollies Fish Breeding, Introducing Recessive Gene Recently I began a blog series on introducing new genes into a livebearer population. Technically the proper usage […]

Photo of a male hifin redwag swordtail.

Introducing a Dominant Gene

Photo: A male Hifin Redwag Swordtail. I’m beginning a blog series on introducing new genes (technically alleles, but I’ll bow to common usage) into a xiphophorine population. In this blog I’ll discuss the mechanics of introducing a single dominant gene into a xiphophorine population. By the way, this doesn’t only apply to xiphophorines or even […]

Photo of a male Labidochromis caeruleus commonly called Lemon Yellow Lab.

Labidochromis caeruleus ‘Gold’

Photo: A male Labidochromis caeruleus ‘Gold’ or ‘Lemon Yellow Lab.’ We raise a lot of African cichlids, especially those from Lake Malawi in East Africa. One of these is very popular with our aquarium maintenance customers due to its bright yellow coloration. This species is Labidochromis caeruleus ‘Gold.’ The ‘Gold’ designation indicates it is the […]