Tag Archives: calico ranchu

cow ranchu

The Transformation of my Cow Ranchu (2019 – 2020)

As I mentioned before, I bought five cow ranchu from an importer in Indonesia (Jakarta Goldfish Centre). They came from De Quan Farm in Fu Zhou, China. Only one male survives until now and he has been my favorite so far. One amazing feature of the fish is the growth of its black pigment. When I compared the fish before and after, I can hardly recognize him. So, it is confirmed that the black pigment in cow ranchu can grow.

This is the picture taken on December 2019:

And this is him in October 2020:

Marvelous, isn’t he?

However, the growth of the black pigmentation on the offspring is quite challenging. Until now (almost 4 months old), the black pigment does not seem to grow at all. Most of the offspring are white with some black spots underneath the transparent scale, which look like bluish or shadowy color. I am hoping that the black pigment can come out to the outer layer of the transparent scale. Some people reported that it usually happens late on the fish. Hopefully they are correct. The rest of the offspring resemble calico. I will post their pictures on the next posting.

Feel free to share what you think about the transformation of this cow ranchu on the comments below 😊 Thank you.

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cow ranchu

Update on Cow Ranchu Project 2020

In the previous blog (see: https://hermantogoldfish.com/category/cow-ranchu/) I talked about buying several cow ranchus and crossed them with several ranchu variants. Since then, most of my cow ranchus have died due to illness and accident. I was left with one beautiful male and one unproductive female. This female laid eggs often, but none hatched. After several failures, I let the female go (I sold her). It occurred to my mind the possibility that the female had undergone a certain treatment to make her unproductive. I was glad to have two pure offspring which I posted on the previous blog.

I must admit that the two offspring were weak. One of them could not keep her balance which resulted in stunted growth. I was forced to terminate it early. The remaining one was female, which I keep until now. It had slight imbalance which grew more and more acute. It might not survive long. Here she is:

The good news is I had the chance to mate her with her uncle (the remaining male cow ranchu that I bought in the first place). I am raising two batches right now and will post them in the coming months when they are ready. It is my interest to see if they will breed true or if they will just be calicos.

From the cross between the cow ranchu and the common calico, I kept one female:

For sure the deportment is better than the pure cow ranchu offspring. She grows well, yet she lays no eggs until now. It has past her due time. I still hope she will lay eggs soon. My plan is to mate it back with the “uncle” (the initial cow ranchu).

My pride so far goes to the cross between the cow ranchu and the blue ranchu. I keep only one, also. He is a male with the kirin style pattern. He looks handsome now. My plan is to mate him with a blue ranchu. I would like to see what offspring will they produce. This is the pictures of the handsome guy:

It is interesting to compare them with their childhood pictures (in the previous blog).

Well, these are the updates for now. Hopefully they bring happiness to your days.

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