Otocinclus fish are small catfish that are native to South America. Otocinclus fish are also called dwarf suckers or otos and mainly eat algae, making them a great addition to your home aquarium.

Like doghouses and litter boxes, aquariums are a fixture in many homes. An estimated 1 in 8 American households keeps fish as pets, and over 158 million fish live in captivity in the U.S. It’s not ...

NEW YORK (AP) — You can see right through this little aquarium fish from Thailand: Its skin is almost completely transparent. But when the light hits it just right, its body flickers with shimmering ...