Hey guys, had a lil problem with fungus gnats so i was advised that a thin layer of green sand would help, and it did, did great. about 2 weeks after adding green sand, i notice one plant that has some discoloration and the tips are turning upwards and downwards like the claw. could this be nitrogen toxicity? or iron toxicity? its only one plant. pics related plants just finished 3rd week of veg from seed.
