Guppies are beginner-friendly, low-maintenance fish that thrive in a 10-gallon tank, with a peaceful temperament and omnivorous diet. Males are smaller with vibrant colors, while females are larger ...

Freshwater aquarium fish include the most familiar, popular types of aquarium fish, such as guppies, black mollies, neon tetras and Siamese fighting fish, or Betta fish. Raising fish requires know-how ...