From a fellow grower: Multiple fan leaves are curling along the edges, and look almost tube like, please advise.
I just seen on YouTube it looks like overwatering .how often do u water and how much do u give them
I could be wrong but in top right of pic looks like a body of water……
I’ve seen bugs do this, if I’m not mistaken it was broad mites
I’ll bet @Hellraiser lmows what causes this
Yeah that is usually caused by excess heat, humidity, root problems (even bug related), or over-watering.