Hydra is a freshwater polyp that enters aquariums with little goal beyond killing fry and smaller fish. In order to combat hydra, many aquarists stock their tanks with a pearl gourami.

The "kings" of freshwater aquariums, Discus fish are known for their stunning looks. With stable warm temperatures and clear ...

Here’s how to ensure that you buy aquarium fish ethically. The debate around wild-caught vs captive-bred fish Up to 90% of freshwater species in aquariums are bred in captivity.

Few people probably realize that in the rivers and lakes of the Amazon rainforest large stingrays glide, searching for crustaceans and small fish. Equipped with a powerful barbed tail they are ...

Colorful fish makes a splash as the 9,000th animal in our Photo Ark. The bandula barb, a colorful but critically endangered fish found in one stream in Sri Lanka, has recently rebounded but faces ...