Hi , I was in LFS recently and they has smal pices of Jave Fern floating around, I scrounged a piece but when I got home I'm not sure if this is Jave Fern because I have a small portion in my other tank, this stuff is in my main tank, was flating freely with long brown roots, its resting on some rocks for the time being, any idea what it is ? 
and any info greatly appreciated 
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/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0314.jpg
http/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0315.jpg
http/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0316.jpg
and any info greatly appreciated http
/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0314.jpghttp
/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0315.jpghttp
/i945.photobucket.com/albums/ad294/kiriyama_01/Photo0316.jpg
