Photo of a possible Limia vittata/Poecilia mexicana hybrid. The upper fish is a female Limia vittata. The bottom fish is a possible female Limia vittata/Poecilia mexicana hybrid. I have tried for years to produce a molly/Limia hybrid to no avail until maybe now. Why would I attempt this? ... Read More
Breeding
Developing and Setting a New Fish Strain
Photo: A young breeder male Skyblue Dragon Blood Peacock Cichlid. One of my favorite aquaculture activities is the development of new strains of fish with new colors, fins, shapes, etc. That isn’t to say that I don’t enjoy maintaining wild-type fish and pure species as they appear in nature, but ... Read More
Fish Growth Inhibition
Photo: A 55-gallon vat with 144 adult male cichlids 5+" long, showing that our system allows crowding without growth inhibition. See below for the possible reasons. Recently, a hobbyist messaged me: “I’ve heard that fish release a hormone that will slow the growth of other similar fish. Do you ... Read More
Gold OB Peacock
Photo: A breeder male Gold OB Peacock in a five-gallon bucket as he is being processed before being moved back into his breeding colony. WARNING!!! This is a rather long and geeky fish blog for my fishkeeping friends. I decided to kill two birds (or fish, whatever!) with one stone by 1) ... Read More
Xiphophorus alvarezi, Chiapas Swordtail
Photo: A young, three to four month old, male Xiphophorus alvarezi. Xiphophorus alvarezi, the Chiapas Swordtail, is a wild swordtail species from, remarkably enough considering its name, the Mexican state of Chiapas. We acquired this species in the auction at the April 2012 Fort Lauderdale ... Read More
Giant Green Sailfin Molly
Photo: A large male Green Sailfin Molly from four years ago and one of our breeders used in our attempt to create a giant molly. For about eight years, I’ve been working to develop a very large Green Sailfin Molly, which I creatively named Giant Green Sailfin Mollies (“GGSM” for short for the ... Read More
A Possible Female Guppy/Molly Hybrid
Photo: A possible Poecilia reticulata (guppy) x Poecilia mexicana, Campeche (molly) hybrid in front of a grid to show size. We found the fish in the above photograph January 15th of this year. Before I describe the fish and argue why I think it might be a hybrid, let me give you some ... Read More
Teas, Fish, and Chickens
Photo: Greenhouses without their covers immediately after Hurricane Harvey. Note the trees in the background stripped of their leaves by the hurricane force winds. So, what do tea, fish, and chickens have in common? This blog will tie them together. Our farm and hatchery have had two ... Read More
Arulius Barb
A male Arulius Barb (Puntius arulius or maybe Dawkinsia tambraparniei) in front of a one-inch grid to show size. Note the filaments on his dorsal. Recently I got this email from a customer (slightly edited): “Hi Charles. I hope you guys fared the cold weather well. I just wanted to ... Read More
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 ... Read More