2 Oz Portion Cup of Duckweed.

Duckweed is the plant that most hobbyists learn to hate because it multiplies so fast. I originally heard about Duckweed and wanted it for it's ability to multiply rapidly. I had some give to me and not knowing when I put it in my aquarium, I had a lot of surface agitation from my air pumps. Duckweed doesn't like moving water. It prefers still water that doesn't move much at all. So I turned down the aeration to lower my surface agitation. I then bought $10 worth of Duckweed from a fellow hobbyist. I remember the day when i  told him I would take it all, that he looked at me and said "You actually want Duckweed? I am trying to get rid of it." I put a portion in each of my tanks and waited for it to grow. Well grow it did. In fact I learned really quick why people call it a plague because once you begin, you quickly want it to end. Duckweed plants are very small. 100 plants could fit on your finger. A 2oz condiment cup can hold thousands of plants. So once I experienced Duckweed in my Fish room I began to really hate it. I was removing almost half a tank worth a week and it kept growing at a rate so fast that I began to decide it had to go to a tank in another room away from the fish room. I scooped it all out and put it in a spare tank and just left it alone. No fertilize, no caring for it. I forgot about it actually. 2 months later I happened to pass by the room and open the door. There the Duckweed was happily still alive. So I then decided to try putting some in my wife's goldfish tank to thin it down some. Instantly her Goldfish began eating it like it was a Birthday cake and they were starving. So now I grow it for our Goldfish, and will be feeding it to our Tilapia. We then read about how people in foreign countries grow it for livestock food. Wait! What, now I can feed it to my chickens and be giving them a fodder replacement that replenished itself and I didn't have to invest time into sowing seed, watering it, and having to buy it over and over. It has become a food source and that $10 has saved us a lot of money in the long run. The plant that is a plague to most hobbyist fish keepers is making my life better and my wallet stay fuller. If you want to raise it for a supplement to feed your livestock and do away with fodder, simply use kid wading pools, troughs, tubs, anything that holds water. Anything with a larger surface area is better but anything will work. Add manure and it will grow. I'd recommend keeping some indoors as a backup just in case it decides to hibernate in the winter. Usually it doesn't here in the south but on freezing nights it may. Having a backup indoors means you don't have to wait for it to come back in the spring. Remember to cover your containers with a screen like window mesh. If not frogs will breed in the tubs and every time they jump out they carry your Duckweed with them.