Looks like you are growing in coco. second glance, it looks more like soil
What medium exactly is that?
If anything id say that coco looks fairly dry. Those twisty leaves look like pH maybe getting a bit funky. Have u checkd runoff?
It’s canna terra plus. My run off is 6.4.
The leaves have been curling the whole grow I’m more concerned about the color of the tips.
The tips on the one look like a bit of nutrient burn. Specifically Nitrogen. I wouldnt worry as it is very light at this point. Actually I prefer my plants nails paintd
What is run off PPMs?
My run off is 6.4
That is your PH you need to be checking your run off PPMs with a TDS meter.
You are already feeding nutrients without checking run off PPMs. Usually check them numbers so you know the plant has used the nutrients in the soil. So when your PPMs are below 1000 then you start feeding and you start out feeding at like 400 PPM not full strength. Then work your way up
Plants that size in coco can be fed every day. You need to be targeting ph at 5.8. 1.4-2.0ec (700-1000ppm 500 scale) Feed til runoff of about 20% every time