Anyone considering a simple aquarium setup should know that every fish needs clean, stable water. Even hardy species need ...

Freshwater makes up less than three percent of Earth’s water supply but is home to almost half of all fish species. Puerto Rican mountain mullet reside in El Yunque National Forest. Known to the ...

Captive-raised specimens of some of the world’s largest and most critically endangered freshwater fish—including a five-foot-long Mekong giant catfish—were released this month into Cambodia’s Tonle ...