I recently bought some java moss(mail ordered). When it arrived 2 days ago and I put it in my tank it looked really brown. It has "greened up a little" in the 2 days I've had it. My question is: Will it get greener? Is it dead? It took 5 days to arrive so I figured since it had been in the dark so long that maybe it is just "in shock". Any help is much appreciated.