Giant Duckweed (Spirodela polyrhiza)

Giant Duckweed, like its name, is much larger than the more common Lesser Duckweed. Although still a pretty small floating plant at roughly 1cm fully grown. This species features a striking purple underside and because of its size, it can be much easier to control compared to Lesser Duckweed.

Super fast growth! Usually people purchase 10 plantlets per 10 gallons, but you could easily start any size tank with just a few of these guys. 

No special tank requirements, can be kept anywhere from 45-85°F so this stuff will thrive in pretty much any tank!