We may receive a commission on purchases made from links. There are over 70 species of betta fish, with the most common pet ...

Australia's tropical fish are heading south into cooler waters. These fish are not just visiting. They are settling into the milder "temperate" reefs that used to be too cold for them. As they do, ...

Otocinclus Catfish are small algae eaters that thrive in groups. They are highly peaceful and help control algae growth in a community tank. They require a well-established aquarium with plenty of ...

Cardinal tetras are famous for their glowing blue and bright red stripes that run across their bodies. People often mix them up with neon tetras, but cardinal tetras have a bright red line that goes ...

Ivan Nagelkerken receives funding from the Australian Research Council (ARC). Angus Mitchell and Chloe Hayes do not work for, consult, own shares in or receive funding from any company or organization ...