Handy guide details the fun and easy way to keep fish in a freshwater, marine, or brackish aquarium Learn everything from selecting the right fish and equipment to creating an underwater paradise ...

Believe it or not, it has been 53 years since the historic rotunda space at the Shedd Aquarium has welcomed a new exhibit.

Don’t be fooled by the tiny bowls bettas are kept in at the store. A single betta requires a minimum of one gallon of water ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world ... When given proper care, betta fish can live for a while. But what is the average lifespan ...

The giant freshwater stingray may be the world ... where their more commonly known relatives live. These ancient fish, little changed over many millions of years, can reach 16.5 feet long ...

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...

A report has warned of a "catastrophic" decline in freshwater fish, with nearly a third threatened by extinction. Conservation groups said 80 species were known to have gone extinct, 16 in the ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found. Large-bodied migratory species such as Atlantic salmon are thriving as ...

A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented, scientists say. It unseated the previous record-holder, a 646lb (293kg) Mekong giant ...