Mystery snails are popular aquarium snails known for their unique look and relative ease of care. These snails, which come in a variety of colours, are calm and peaceful aquarium dwellers that are ideal for controlling algae. They are quick to reproduce, meaning they are highly practical for combating algae while simultaneously adding a lively touch to the aquarium. They are a great addition to most aquariums, as they are generally calm and tolerant of different water temperatures and hardnesses. When buying, it is important to choose snails that are in good physical condition and look healthy.