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Fancy-tailed guppies, also known as fan-tailed guppies, are a popular species of freshwater fish named for their colorful, fan-shaped tails. Male fancy-tailed guppies have the biggest, most colorful tails. More »

www.reference.com Pets & Animals Marine Life Fish

Fancy guppies are guppies that have been bred in captivity for bright color and long fins. Ideal guppies have long, wide tail fins that match the dorsal fins in color and pattern. Male guppies have brighter colors and lo... More »

www.reference.com Pets & Animals Pets Aquatic Pets

Cobra guppies are exotic, brightly colored fish also known as fancy guppies. They have a unique pattern on their lower bodies and are available in blue, green, black, orange and yellow. More »

www.reference.com Pets & Animals Pets Aquatic Pets
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While guppies do not bother other fish, selecting appropriate species to share their tank involves choosing types that don't bother them, such as small cichlids. Although larger cichlids are sometimes aggressive, rams an... More »

www.reference.com Pets & Animals Marine Life Fish

The Golden Wonder killifish, also known as the striped panchax, is a species of freshwater fish popular with aquarium owners thanks to its bright coloring. Requiring minimal care, able to survive in a variety of water co... More »

www.reference.com Pets & Animals Marine Life Fish

There are a few natural species of glowing freshwater fish. One example is the Japanese freshwater green eel, which contains a fluorescent protein in its body that causes it to glow green. More »

www.reference.com Pets & Animals Marine Life Fish

While the specific diet of a freshwater fish depends on its species, most eat smaller fish, leeches, worms, insects, crustaceans, plankton and krill. When kept in an aquarium, freshwater fish can thrive on a combination ... More »

www.reference.com Pets & Animals Marine Life Fish