If you are shopping for aquarium pets and plants, don’t forget to think about whether you are buying invasive species. Dave Cozzolino, owner of Wilmette Pet Center in Wilmette, Ill., has a supply of brochures that encourage aquarium owners to purchase non-invasive alternatives to aquatic invasive mollusks, like snails, clams, and mussels. If your pet store isn’t well-stocked with information, you can find out more about aquatic invasive species and responsible pet ownership on our AIS webpage about organisms in trade.