A question from a fellow grower:
I am growing my plants in 5 gallons of water using an air stone for oxygenation. The PH is around 5.8 and I am using Ionics grow in the right proportion for the amount of water. Water being changed every 7 days. Lighting is achieved by a Sunleaves Pioneer IV with 4 grow bulbs kept about 10 inches above the plants.
I have started all from seeds placed in rock wool. The problem is the plant start of really well but then the leaves start to turn brown and curl. I am not sure why this is happening. Any help would be greatly appreciated.