Hey yall. My buddy is running a 4x4 with a hlg 550 eco. A.c is being pulled in with freash air, and exhaust carbon filter set up. The leaves are curling sideways and looking funny. I trimmed the fingers off for him to let more light through the canopy. He had the light 24 inch and 36 inch above his plants even to the top of the tent, but they are still showing stress. Hes dimmed the light down and its still doing this. Any advice would greatly be appreciated. Its his first time and its got me stumped