AUGUSTA, Maine — Zebra Mussels, a highly invasive and prolific species, have been found hitchhiking on aquatic moss balls sold in pet stores in Maine and throughout the country. Maine’s natural resource agencies are urging anyone who may have bought these moss balls to destroy them, and for pet stores to remove them from the read more Invasive Zebra Mussels Found In Central and Southern Maine Pet Store Aquatic Plants, Agencies Urge Consumers To Destroy and Disinfect