A week or two ago, I noticed what I originally thought was just fish poo caught on the leaves of my java fern, planted a week or so before. Then I realized they were growing, and there were more of them. They look like the root hairs at the base of the plant, so I figure that's what they are...
It's only on the tips of two leaves - and these two leaves are the only ones that don't have root hairs - they're just wedged into the driftwood I have, but they haven't turned brown or anything, except at the base - but I think that's just tanins from the wood (my water is still turning slightly brown, need to do more water changes).
Here's a picture. More of these threads have grown since I took it several days ago.
Will I get another fern if I do something with these? What should I do, or do I just leave it be?
Here's my current tank setup (and in signature):
It's only on the tips of two leaves - and these two leaves are the only ones that don't have root hairs - they're just wedged into the driftwood I have, but they haven't turned brown or anything, except at the base - but I think that's just tanins from the wood (my water is still turning slightly brown, need to do more water changes).
Here's a picture. More of these threads have grown since I took it several days ago.

Will I get another fern if I do something with these? What should I do, or do I just leave it be?
Here's my current tank setup (and in signature):
