M matt87072 Active Member Dec 1, 2008 #1 my plants are under a 400 watt hps and are about 2 feet away from the light.. then suddenly the lower leaves started turning yellow with brown spots..... some of the leaves are also dry and brittle to the touch please help Attachments DSC03922.jpg 42.8 KB · Views: 16 DSC03917.jpg 32.8 KB · Views: 11 DSC03925.jpg 63.7 KB · Views: 19 DSC03926.jpg 53.3 KB · Views: 12
my plants are under a 400 watt hps and are about 2 feet away from the light.. then suddenly the lower leaves started turning yellow with brown spots..... some of the leaves are also dry and brittle to the touch please help