Angelfish must be kept in schools of six or more in at least an 80-gallon tank. They may show aggression toward other species ... keeping larger fish healthy. Gobies also eat algae.

What’s Happening? Why Does Algae Grow in Fish Tanks? Imagine walking into your living room one morning, excited to admire ...

Confronting images of dead seadragons, fish and octopuses washed up on South Australian beaches—and disturbing reports of ...