hey all! i have this ~7 year old lucky bamboo that has been in rocks for a while without a drainage hole and it was looking a bit sad - and then i moved it into a terracotta pot with rocks and it started looking worse - and transferred it into a cup of distilled water in partial sun - can anyone tell me whats going on with the stem? i know the plant is very old for a bamboo but its the last remaining part of my grandma that we have (also to the right in the first picture is a smaller cutoff that i propagated and is thriving in the water)