Coppersafe vs. Java Fern
Thanks for the information so far....it doesn't look good for the Java Fern.
It did indeed sprout baby plants on almost all of its leaves just after the
copper was added. I guess that's a sign of doom for this particular plant,
since none of them have grown at all beyond the point that you can recognize
them for baby plants.
I'll try a couple of massive water changes and some pruning as was suggested,
just in case there's something to be salvaged.