1 OZ of wet Duckweed - Fish KOI Pond Plant. good water filter, fish can eat it. Grows really fast. Packed in a zipper bag, and ships first class from Washington State Ships same day. Full refund if you have problems, no need to return anything. You wont have problems, this plant doesn't die (but it will get eaten by fish and turtles). I have a pond that's filled with this duckweed, so I always put extra extra in. You will get way more then whats listed. Check out the volume pricing This duckweed smells really good. I have my own technique where I wash the duck weed before I ship it. I remove any snails I find and small sticks and things. anything that doesnt float gets removed. It really makes for some clean duckweed. It may have small snails, but I do try to remove them all before shipping.