i've got a pretty well established java fern in my tank and it's started to have a bit of a problem. I recently added some aqua soil and and some laterite to my tank and since i did this the tips of some leaves look like they are burned.
burned as in looks like it has black spots or what?
It could be black algae...depending on what it looks like....can you post a picture to give a better idea?
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Kai
“No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be…” – Isaac Asimov
My Java Ferns blackened and made me worry, same as you. However, after two months, each leaf that blackened sprouted new leaves and I found little sprouts floating all over the tank, stuck in the java moss.