Some kind of a defficiency


I seem to have a little problem in mi goldfish tank
concerning some kind of a defficiency. Here are the

Some of my Hygrophila and Synnema plant leaves seem to have
the outside a bit yellowish, while the inside of the leaf is
still grean. Also on some of the leaves there seem to be
skirt cut-like marks (transparent short lines across the
leaf surface in different directions). What kind of a
defficiency can that be and what can I do to fix it?

          ||/   -=< TONID >=-
     | /| |/   Tomasz Nidecki
     || |//    tonid at falcon_mimuw.edu.pl (FWD to FIDO)
     ||////    Tomasz.Nidecki at f78_n480.z2.fidonet.org
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