about 2 weeks ago I "bought" a blyxa japonica online, and I today it finally arrived. It's a tiny little piece of blyxa (2x2 in), and 40% of the leaves are brown and 10% are turning brown. What do I do to make it survive and flourish? Are there any chances of survival? There is also something very strange looking, there's a "packet of leaves" that has what looks like tiny blyxa seeds folded in.