Please help!

U need more nitrogen for the yellowing it plant is hungry for N but your burned tips mean nutrient burns... U need to lower the EC for nutrients u can cut some nutrients idk what you are using but you I need to give more N.. Nitrogen. Enjoy

This deficiency could have 2 reasons. The first one is too much nutrients and salts build up inside the soil and cause a nutrient lockout. The second reason is that the pH is not within the right range. You can solve both of these problems with a flush. Use 2 times the pot volume with water with the right pH and a low amount of nutrients. Let the top inch of the soil dry out before watering again. From then you can continue watering and feeding like you did before. Make sure that you are using the right nutrients. Blooming nutrients with the right ratio. The plant does need phosphorus (P), potassium (K) And Cal-Mag the most during this phase of the grow.

Sieht nach Nährstoffmangel aus. Eventuell Stickstoff