It looks like Duck Weed, but it's hard to tell without something for a size reference
Does it have individual roots, or a root system ?
I'm gonna throw it out there and say it looks like Spirodela polyrhiza
If the edges start to turn red under good lighting, that's it ... Giant Duckweed
Last edited by gregzz4; 12-14-2012 at 05:03 AM.
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