yellowing and fallen leaves / bronze curled and brown leaf tips

Howdy. Right off the bat I'm seeing a potassium deficiency. Not over watering, but a lack of nutrients to help carry her needs atm. With a balanced feed, these symptoms will pull back, but not completely. You may lose some of the more affected fans, but all should be well with new growth after the application. A little patience and a couple normal, balanced feeds and things should be right as rain. Cheers and good luck this week👍

off the top of my head .... I've no idea? But..... Looking.... It is only the Fan leaves which logic would say is some sort of self preservation. Its choosing the leaves it doesn't need as much. Too hot or too cold? not lack of water though, it wouldn't choose the fan leaves specifically for that I don't think? It would just chips from all the tips..... Onlly guessing but good look

Hey bro! 👋 It's a general deficiency of elements due to a lack of watering. Increase the watering volume from 0.5 liters to 1 liter. At this age, the plant drinks 10% of the pot volume, so if you have a 15-liter pot, you need to water with 1.5 liters of water, and you're watering too little. Increase the watering to 1 liter at a time! 👌😇👍 Good luck, bro!