FEED: EC 1.6 MEDIUM: Peril-Light & Clay Ball GENERAL: 1000 Watt Lighting Plants, 3 Weeks Old QUESTION: I am having a problem with the plants the last day or so. I noticed markings on the older leaf. The plants are about 30-40cm in height, and the marking is only on the leafs growing 2nd level up from bottom. New top growth seems to be ok at this time. Photos: http://img.photobucket.com/albums/v662/pkcmva/5.jpg http://img.photobucket.com/albums/v662/pkcmva/4.jpg