Hi, My Nymphaea (sp Swaziland, I think) has lost all its leaves over a period of several weeks. The leaves do not decay whatsoever but just break off at the gravel. What is wrong with it? I tried to remove it but found somekind of growth as big as a thumb under the gravel. What should I do? let it stay in the gravel? Would it grow leaves again? Thanks for any advice. rgds..kbkoh