JUANE'S NOTE

Juane* Whimsical Note

Goldfish, daily life, seeds of creation... writing as thoughts come to mind.

2026.02.09No.115History and Culture of Goldfish

Buddhist Release Ponds Saved Goldfish! Ornamental Fish Culture Nurtured by Temples

Release ponds were born from the Buddhist idea of 'non-killing'. A safe environment with no natural enemies protected the red crucian carp and became a place for people to observe them. We explore the role religious spaces played in goldfish culture.

2026.02.09No.114History and Culture of Goldfish

How Were Goldfish Kept in the Song Dynasty Court? Ornamental Fish of Emperors and Nobles

Goldfish were first kept by Song Dynasty emperors and nobles. Red fish swimming in garden ponds were symbols of wealth and power. We explore the state of goldfish keeping in the court and the beginning of ornamental fish culture.

2026.02.09No.113History and Culture of Goldfish

What is the Song Dynasty of China? Explaining the Historical Background of Goldfish Origin

Goldfish originated during the Song Dynasty in China (960-1279). Economic prosperity, cultural maturity, urbanization... We explore the historical background of why goldfish culture blossomed in this era.

2026.02.09No.112History and Culture of Goldfish

Mechanism of Goldfish Red Color: Science of Pigment Cells and Light

How is the beautiful red color of goldfish created? We scientifically explain the goldfish's body color, from the types of pigment cells and the function of melanin and carotenoids to light reflection.

2026.02.09No.111History and Culture of Goldfish

What is Mutation? A Biological Explanation of the Mechanism Turning Crucian Carp Red

Why was a red goldfish born from a gray crucian carp? We explain the mechanism of mutation in an easy-to-understand way. From DNA changes and gene function to pigment changes, we unravel the biological background of the goldfish birth.

2026.02.09No.110History and Culture of Goldfish

Goldfish's Ancestor is the Chinese Crucian Carp! Differences and Distribution of Ginbuna and Kinbuna

There are multiple types of crucian carp (Funa), and the ancestor of the goldfish is a species closely related to the Ginbuna (Silver Crucian Carp) native to China. We explain the differences from Japanese Funa, the characteristics of each Funa, and why goldfish did not originate in Japan.

2026.02.09No.109History and Culture of Goldfish

Goldfish's Ancestor is the Crucian Carp! Why a Plain River Fish Turned into a Beautiful Ornamental Fish

Did you know that the goldfish's ancestor was actually the plain crucian carp found in rivers and ponds? We unravel why the crucian carp could evolve into the goldfish from its ecology and prodigious vitality.

2026.02.02No.108Daily Thoughts

0.1mm of Gratitude

When climbing a bouldering wall, you face moments where your fingertips are just 0.1mm short. Do you descend safely, or stretch until your fingertips tingle? Keeping on challenging is the highest form of gratitude.

2026.02.01No.107Daily Thoughts

Signs of Morning, Waves of Code, and Black Coffee

I notice the signs of morning outside the window. I ended up staying up all night, driven by a new idea for 'Mina-san Fes. 2026' in March. About the code for a happy mechanism that I wrote down, moved by impulse.