Here are ten of the most colorful freshwater fish that will transform your aquarium into a mesmerizing underwater world. 1. Betta Fish . ... This small fish adds a sparkling, ...

They're small—about 2.5 inches at full size—and get along well with other peaceful fish. Like guppies and mollies, they're livebearers, so reproduction happens easily and often. Cherry Barb ...

Harlequin rasboras are a species of small, colorful fish popular for aquariums. Learn how to identify them, how to care for them, and what sets them apart from actual rasbora species.

Color. Discus fish are often categorized as blue, ... Don’t be fooled if you see a small juvenile discus in a pet store. The fully grown discus size ranges from 5 to 9 inches in diameter.

Olsson has a special fondness for the ram cichlid, a small, colorful fish native to South America's Orinoco River basin. "I just kind of bond with them," he said.

Scientists found colorful, iridescent animals and discovered 2 new species of fish in Brazil: Hypsolebias gongobira and Hypsolebias bonita.

An international research team led by the University of North Carolina Wilmington (UNCW) with the participation of the ...

The least chub is a small, colorful, minnow-like fish that, according to the Utah Division of Wildlife, thrive in spring-fed wetlands, eating algae, small insects and mosquito larvae.