March 4, 2021:

Zebra Mussels have been found attached to and inside of Betta Buddy Marimo Balls (moss balls) that are being sold in aquarium and pet shops. They were first reported in the state of Washington, but these moss balls are distributed across the U.S. and are being found in other states. They have not been found in Delaware yet, but it is important to keep an eye out.

If you find Zebra Mussels in moss balls, please document and contact Edna Stetzar, Delaware Division of Fish and Wildlife (Edna.Stetzar@delaware.gov).