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 ...

Choosing the best tropical fish for your freshwater aquarium can be quite a challenge, especially when you see the amazing variety of species on display at most respectable pet stores. One group ...

Charlie Martin, an assistant professor at South Alabama, has been tracking the range of tropical fish like snook. So far, researchers tell AL.com, Alabama is only adding species. That’s been a ...

Scientists caught a popular aquarium fish in Xingu river and discovered a new species, already critically endangered, a study said. Photo from Sousa, Sousa, Oliveira, Sabaj, Zuanon and Rapp Py ...

Scientists from the Leibniz Center for Tropical Marine Research (ZMT) in Bremen, together with colleagues from Central America, have described a new fish species in the Gulf of Mexico ...

U.S. wildlife officials want to add a rare Nevada fish to the list of endangered species. A federal proposal was issued ...