andrewdishner
New member
A couple days ago I started to notice brown spots appearing on the tops of my plant. I'm like a month and half into flowering. My ph is 6.5 and my ppm is 300 and 560. I think I have calcium deficiency. I'm also using platinum led grow lights. They are a little less than 18 inches away because I'm using a tent that isn't that tall. I just got a new tent and I'm going to move the plants into it tonight. What do you recommend I do.
