If you’re curious about keeping fish and considering buying a 20-gallon aquarium, you’ve come to the right place. It’s hard to know where to start when choosing fish, and tank size is just one of the ...

The giant freshwater stingray may be the ... The rays have also been targeted for the burgeoning aquarium trade, though it is now illegal to fish for stingrays in Thailand.

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 ...