10 Most Colorful Freshwater Fish in the World

10 Most Colorful Freshwater Fish in the World

By Sheetal Kumari | June 23, 2025 

The “kings of the aquarium,” Discus fish showcase dazzling blues, reds, and greens in incredible patterns.

Discus Fish

(Image: Canva)

With delicate fins and a spectrum of colors, Betta fish are lovely and violently territorial.

Betta Fish

(Image: Canva)

Small but stunning, guppies are available in infinite colours and tail shapes, which make them a hobbyist favorite.

Guppy

(Image: Canva)

These calm fish glimmer in brilliant blues and blazing oranges, with an inherent charm that will grace any freshwater aquarium.

Dwarf Gourami

(Image: Canva)

Metallic blues, reds, and yellows characterize the killifish, which is one of the brightest freshwater breeds.

Killifish

(Image: Canva)

Small and vibrant, these cichlids have electric blue bodies with undertones of gold and red.

German Blue Ram

(Image: Canva)

Found in Africa, peacock cichlids have a beautiful range of metallic colours from yellow to violet.

Peacock Cichlid

(Image: Canva)

Renowned for their radiant blue and red stripes, neon tetras illuminate any aquarium.

Neon Tetra

(Image: Canva)

True to their name, rainbowfish glow with iridescent colours that shift according to light and mood.

Rainbowfish

(Image: Canva)

These energetic fish have colorful, striped bodies and are very close relatives of the guppy—ideal for nano tanks.

Endler’s Livebearer

(Image: Canva)

Next: Meet Sea Bunnies: The Cute But Toxic Sea Slugs
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