Ill upload a picture in a second but I don't think it's overwatering, I water my plants when the pot feels light and they had been in great shape all grow but these few days when I noted this wired spots. I have no idea what my pH is, should be fine since I'm using pH perfect form Advanced nutrients, well in theory.the way the tips are brown indicates a nurtient defiency of some sorts like mag. what ph is your water and have you foliage feed lately and please upload a pic of soil as could be also caused by water logging