Most of the leaves on several of my 8 or so J. ferns have what looks like rust spots all over. The spots darken and become holes for the most part but some just have (and have for weeks) spots on them. I do not think it is algae. My A. nana, J. moss, Hornwort, and Corkscrew Val are doing well w/o algae or spots. Could the Hornwort (which is growing like mad!!) and others be outcompeteing the fern? Should I add ferts? Should I trim and remove the "infected" leaves?
http://www.aquariacentral.com/forums/showthread.php?threadid=4141
http://www.aquariacentral.com/forums/showthread.php?threadid=4141
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