 Whether or not a lake has any invasive species, Minnesota law requires people to clean watercraft, trailers, and equipment to remove aquatic plants and prohibit invasive species, drain all water and leave drain plugs out during transport, dispose of any unwanted bait in the trash, never release bait, plants, or aquarium pets into Minnesota waters, dry docks, lifts, and rafts for 21 days before moving them from one body of water to another.