Ask Game & Fish

Q: “What can I do to prevent the spread of zebra mussels found in moss balls?”

A: Zebra mussels, an aquatic invasive species, were recently found in moss balls sold through Wyoming pet stores. Moss balls are used in aquariums for decoration and water oxygenation. There are three main things the public can do to help prevent the spread of invasive zebra mussels.

If you have an aquarium with moss balls, don’t flush moss balls or pour any of your aquarium water down the drain. First, remove any fish or pets from the aquarium, then boil the moss ball, other aquatic plants and aquarium water for at...