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Adding colorful tropical fish to your aquarium is a no-brainer if you love being mesmerized by beautiful colors and patterns. Many people, when they hear the word ‘fish’ think of dull grey fish or the ...

You can see right through this little aquarium fish from Thailand: Its skin is almost completely transparent. But when the light hits it just right, its body flickers with shimmering rainbow colors.

Among aquarium enthusiasts who keep bettas, it is usually the male fish that are known as the "colorful ones." Oftentimes the males are favored over the females not only for their color, but also ...

The swordtail is a beginner-friendly tropical fish species. This hardy fish comes in various vibrant colors and can be kept in a freshwater tank as small as 10 gallons. These traits make swordtails ...

TOKYO -- Some 1,000 colorful fish of 25 different species from tropical Okinawa Prefecture in southern Japan are brightening up the Ginza district here. At Ginza Sony Park, which opened this month ...