biscuit cola leaves brown

  1. B

    Help Please: Top cola leaves turning brown on edges & crispy

    Hello everyone, 1st post. Thank you in advance for your advice, Biscuit. Have 2 issues. 1) The plant below is about 5-6 weeks into flowering. Within last 3-4 days the leaves you see have started to turn rusty on edges and look crisp yet I haven't changed any conditions. I raised the light a...