日本語(Japanese)
About name of improved medaka
〜Improved Medaka has two names: the variety name and the nickname〜
Speaking of improved medaka, there are famous varieties such as YOKIHI and MIYUKI, but in recent years various medaka names have come to the market.
▲YOKIHI |
![]() ▲MIYUKI |
Many breeders feel that:
- I don't know which one is which.
- What's the difference?
This article describes the basics of the improved Medaka name.
The first thing to keep in mind is that the improved medaka has two names, the variety name and the nickname.
Let's look at an example.
At first please see this medaka.

This is a medaka called ”YOKIHI”, one of the most famous varieties in the improved medaka industry.
Earlier I mentioned that the improved medaka has "two names". In fact, YOKIHI has another name.
It's called Vermilion Medaka.
The following table summarizes this.
Medaka | The variety name | The nickname |
![]() |
Vermillion medaka | YOKIHI |
ome might say, "I've never heard of a vermilion medaka!"
However, at the improved medaka fairs, etc., it was exhibited as "Vermillion Medaka" instead of "YOKIHI".
・・・・・
Now let's talk about the differences between the variety names and the nicknames.
Originally, there was no nickname in the improved medaka industry.
An example is HIMEDAKA (bodycolor: yellow, Genotype: bbRR) or SHIROMEDAKA (bodycolor: white, Genotype: bbrr).
![]() ▲HIMEDAKA |
![]() ▲SHIROMEDAKA |
However, around 2000, Yukio Oba of medakanoyakata proposed the following.
・ If you give a nickname, the medaka will be more charming and friendly
・ If you create a new species, give it a nickname!
From this proposal, the improved medaka has been given two names, the variety name and the nickname.
So how do we use these two names specifically?
The characteristics of each name are as follows.
The variety name | The nickname |
・ The tendency to become long names ・ Scientific and categorical names ・ Clearly express the characteristics of medaka |
・ Short and easy to remember ・ Names with emotion and playfulness ・ It is difficult to understand the characteristics of medaka |
The variety name can be attached with the characteristics of the improved medaka as it is.
For example, if the body color is vermilion and the body type is short body (nemed dharma), the variety name is "vermillion-dharma medaka".

▲vermillion-dharma medaka
The biggest feature of the variety name is that you can clearly see the characteristics of medaka just by looking at the name.
If you know the characteristics of medaka to some extent, you can imagine the characteristics of medaka from the variety name.By the way, the nickname of vermilion-dharma Medaka is “HATSUKOI (means First Love)”.
Medaka | The variety name | The nickname |
![]() |
Vermillion-dharma medaka | HATSUKOI |
It is a very cute and charming name, but from the nickname "HATSUKOI", it would be difficult to imagine a vermillion body color and a short body (dharma).
The good thing about nicknames is that they are easy to remember!
Even if you can remember the name “vermillion-dharma medaka”, you will never remember the name “amber- transparent scale-small eye-selfin-double anal fin-medaka”.
If this is a nickname "NOBUNAGA", you can remember it in one shot.
Cf. Nobunaga is one of the most famous warlords in Japanese history.
Medaka | The variety name | the nickname |
![]() |
amber -transparent scale -small eye -selfin -double anal fin medaka |
NOBUNAGA |
Also, nicknames are much easier when you talk.
As you can see, the improved medaka has two names that make it easier to understand the features and make the names easier to remember.
・・・
To summarize this article, the following three points can be said.
・Improved medaka has two names, “variety name” and “nickname”
・The variety name indicates the characteristics of medaka
・Nickname makes it easier to remember medaka name
The next time you look at medaka, pay attention to the two names!
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