Unfortunately there's a bit of art to dialing in nutrient levels in soil. I would just keep flushing those plants with pure water until the leaves straighten out and they start looking a little hungry for nutrients. I made the mistake when I first started in soil of using a rich soil plus a lot of nutrient, which just burned the crap out of the plants. Start low and just add slightly more until the very tips of the leaves start to burn and alternate pure water & nutrients every other day.
cptcannabis Reviewed by cptcannabis on . Please help, brown spots and curling leaves I'm not sure when this started but I know it has gotten worse since I watered last about 3 days ago. I made the mistake of trying to grow multiple strains in the same room with the same formula. It seems that only one of the strains is effected. The effected strain is querkle (purple erkle x space queen). Unfortunatly, I trimmed away all the worst leaves before I took these pictures. Hopefully you can still get a good idea of what's going on. The room is way overcrowed as it is and even Rating: 5