Besides red and green, "blue is also very important," says Tsai. If the ability to give fish the primary colors of red, blue, and green can be developed, then these colors can be combined to create a rainbow fish with all the colors.
除了紅、綠兩色外，「藍色也很重要，」蔡懷楨表示，紅、藍、綠三原色如果都能開發出來，就能「調配」出各種顏色的七彩魚。