Stonerdanswered grow question 4y ago From the looks of it seems like she is suffering from Potassium (K) deficiency! with lower leaves tips yellowing, mottling, and eventually dying. Increase the macro-nutrient uptake by checking for optimal pH (5.5-6.5/ 6.0-6.5 for soil), putting more of the NPK fertilizers (focusing on PK) in the irrigation solution, and making sure there's enough drainage with at least 20-30% of the irrigation as runoff to prevent salts buildup!
Other than that plant looks nice with great potential!
Good luck and happy growing :)