Not everyone is a fan of snails, but there’s no denying the benefits they bring to a freshwater aquarium. Aquatic snails are fascinating creatures that bring color to a tank and help keep it clean.

"Not garbage! Not an alien!" the Seaside Aquarium posted on Facebook recently. "It's a giant marine snail egg casing!" Fully grown, the Lewis' moon snail can grow up to 5.5 inches. The Washington ...

The two species of freshwater snail were once widespread throughout the Columbia Basin in Montana, Idaho, Oregon and Washington. But the snails have disappeared from Montana and are now living in ...