The Planorb snail is a type of freshwater snail belonging to the Planorbidae family. It is easily recognized by its flat, spiral-shaped shell, often reddish, brown, or translucent, which allows it to move along the surface of the water. These snails are popular in aquariums because they help maintain balance by cleaning algae and organic debris from the bottom. They feed primarily on decaying plants, algae, and dead organic matter. Planorb snails are also known for their ability to reproduce quickly, making them a resilient and easy-to-maintain species in a freshwater aquarium.