Green Refuge
Well-Known Member
So I just moved a few plants from under a 4 bulb T5 to an HLG 550. Plant's were looking great until two days after the move they're all showing the same damage. Is it light/heat damage or is it a pest issue ? I checked leaves with the magnifying scope and didn't see anything. Feed schedule and PH have been the same as under the T5's. The bud sights almost look like I light a match under them. I suspect heat stress combined with the 300 watts of LED at 24 inches but I'm not sure.