Zebra mussels, a prohibited aquatic invasive species, have been found in a variety of moss/algal ball products for aquariums or water gardens sold in western Canada, including in Saskatchewan.
Invasive zebra mussels found on pet store moss balls for sale
Invasive Mussels Found in Aquarium Plants Across Canada - Invasive Species Council of British Columbia
2022-23 Departmental Results Report
Zebra mussels discovered on aquarium plants at Minnesota pet stores
Category: Local - Page 13 - The Dakotan
Zebra Mussels Found in Aquarium Moss Balls - NAISMA
Zebra Mussel
Invasive mussel species enters Alberta through moss balls
Minnesota Outdoor News Issue 48, 2022 by Outdoor News - Issuu
Cute Pixelated Corgi #3 - PIXELATED CORGIS