One unsuccessful attempt in the beginning of this year was the Brown Oranda project. Gladly I have the opportunity to resume the endeavor right now. I still keep few offspring from my original brown oranda line as a back up. One of these have matured into a charming male ready to mate.
This male is not perfect. There is a defect in its tail where the left and right upper lobes do not align well. The left tail is higher than the right one. The body is a bit slim, and one of the aim in this improvement project is to create a more stout body. The headgrowth is still minimalist. Yet he is very photogenic. I cannot help to post his many beautiful pose for us to enjoy.
What I learn about the brown color is that there is a spectrum in the color. There is the dull brown color which is almost undifferentiable from the wild color. Well, most of the brown color look grey when they are in the pale state, such as after being medicated. But they will turn darker into brown color. The one that can only achieve dull color closer to the wild color is not a good fish. There is also the dark brown color, which is nice. But my favorite is the brown color that resembles tea color such as this male. For me, it is the best.
Let us enjoy this guy:
This pair this male with Helen. This has taken place several weeks ago, and now the offspring is already two centimeter in size. In my prediction, some of the offspring will have stout body like Helen the mother. Most will have beautiful tail since both parents have good tail though in a different style. But the headgrowth will still be minimalist since both parents are like that.
How about the color? Yes, Helen is a red fish in its phenotype. But she carries 50% of purple color genetics. So, Helen is a semi-purple goldfish. We need to remember that purple is a color that emerges from the crossing between brown and blue. So, when the purple genetics meets the brown genetics, I will directly get some brown in the offspring.
When the eggs hatched, they can be distinguished into two color: the dark one and the light one. I am sorry I do not take their picture. The dark one is just like the usual fry which will turn into wild / red color. The light one will turn into brown or purple – they can be distinguished at such an early state but this is very hard to do. So, I just separate the light ones from the dark ones at day 1 after they can swim. Why do I need to separate them so early? Because the light one is weaker. Most of them cannot compete with the dark one for food, resulting in malnutrition and stunted growth. Separating them as early as possible will let the light colored fry to develop better. I cull out the darker ones at this stage.
Will I have a good tea-colored offspring? This is hard to predict. In my experience, such a crossing sometimes creates a weak brown color where the fish looses the melanin totally. The fish turns into a complete orange color. If this happens, it will be a set back to the project. Some turns into brown color with the spectrum ranging from the pale / dull ones, the tea-colored ones, and the deep brown ones. There is a special case where the fish turns into a brown and orange fish (two colors) or a complete orange color but then the melanin grows. So, instead of loosing the brown color, the fish regains it and stay in a pleasing two tones color of brown and orange. This is a desirable result.
The pictures below are from my old files (2018). Pardon the bad photography. These pictures illustrate the transformation of the special case where the brown color grew.
2 thoughts on “The Diary of a Goldfish Breeder 2021 (18)”
This is fascinating! I bought a Bronze Thai Oranda from a shop online, and a few months ago he started getting a darker brown color… now he’s loosing that brown color and turning orange. Almost his whole body is orange now, and only his tail and dorsal fin are brown. I hope he regains his brown color! I thought it was very pretty.
Yes, some brown oranda turn into orange, and few can regain its brown color back. Hope yours can get the color back.