I'm kinda at my wits end. My friend left me her Pachira before going off to Afganistan. It's a small 5-stem tree, braided together. One of the stems is dead and another is showing signs of dying. The 3 other stems are all doing well with new growth. It needs a new pot which I will do over the weekend, but I'm concerned with the ones rotting in the pot. Will they affect the other stems badly? Should I try and unweave them when I repot it? Thank you so much!