Robertsanswered grow question 4 years ago You have nutrition burn. The dried brown tips curling up is the sign. I would apply a light feeding this time with extra water to rinse any salts from prior feedings away. Always give at least enough for a 20 percent run off. Plus check ph at beginning of run off and at end part. A digital ph meter is best. Hopevthus helps and good luck and happy growing. 🌲🌲🌲👊