cow ranchu, The Diary of a Goldfish Breeder 2021

The Diary of a Goldfish Breeder 2021 (15)

My Cow Ranchu babies that I mentioned in the Diary #10 this May have matured and are ready to spawn. This activity takes away a lot of time and space from my Oranda projects for the last several months.

One surprising update is the transformation of one particular baby. As I looks back to his pictures in May, I marvel at his current transformation. These are the before and after pictures:

The black pigment has grown significantly in just several months. This transformation happened also in his father. ( I can confidently conclude right now that Cow Ranchu has the ability to grow their black color. This conclusion comes with a note. In my observation, when the young fish has black pigment, be it a black dot or a large black pattern, which exists on the surface of the skin, then the black pigment can grow. But if the fish is totally white without any melanin present in any layer of its skin (some call it Casper) as in Casper the ghost), or if the black pigment exists only under the skin (some call it blue-based / bluish color), my conclusion does not hold. I am not sure yet if the outer black pigments can emerge in such fish.

This cow is a male. There was another male I mentioned in the Diary #10. But since the tail was too widespread, I discard him as a male parent.

The female is the only grey one. She was the offspring of a different version of Cow Ranchu (which I have not documented well – sorry for that). She does not change her color. These are the before and after pics:

The tail is a bit widespread, but I still use her for lack of choice.

What is interesting in both fishes is the small tail size. The current market names it the Tiny Tail. And this feature carries forward to the next generation

I mated the Cow with the Grey several times. As happened many times before, the result is far from satisfying. All of them are calico (no cow color), and mostly come with all sorts of defects. Yet there is an improvement this time. From the first batch, I keep five of them. This is better than before where I discarded all of the offspring. From these five, only the first two I consider as my prize. The rest are just backups. Here they are:

Though the back curves are not very smooth, the shape of the curve is good. There might be some improvement later on, I hope. And they already have black pigments on the outer skin. I hope to see the black pigment grow. I consider calicos with such quality (the growing black pigment) as an interesting quality. These are the pics from top view:

I will see how the fishes develop and decide later onwhat to make out of them. Perhaps they can be my line of Calico Ranchu. Perhaps I can use them in my Cow Ranchu Projects. I have not documented the younger batches, since they are too small to take picture. But the second and third batches are all calicos.

I would like to conclude this Diary with the pictures of the three backups. Have a good day.

These are the backups:


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