I hate to bring up an older thread, but I finally found out what was going on with my java fern. (well, at least to some degree) It turns out that the tiny spots have turned into hair algae, and its growing quite proliferously on the leaves, and somewhat on the roots of my java fern. I noticed my female opaline gourami seemed to be eating the algae the other day, but when I got a bit closer and watched, I realized she was nibbling off pieces of the fern itself and spitting them out! She seems to be doing this to one of my anubias too. >_< @$%$&%&@#!!!! Oh well, everything else seems to be doing good, and its only a few leaves she's doing it to, so hopefully she won't go on a rampage and tear up the whole plant.