Hard to tell from just a pic of low leaves.
Could be nothing more serious than leaves which had been receiving little light being cannibalized by your hungry plant for the N stored thereing when the incerased light intensity from thenew HPS triggered a growth spurt.
Pics of whole plant = more useful.
stinkyattic Reviewed by stinkyattic on . First Time Caller... Hi, Been looking through the curtains at the site for a while, great place, lots of info and finally decided to give it a go. Have a small problem with a couple of our plants, think it could heat stress, maybe a nute deficiency as well and was hoping that someone could help. E-indoor or outdoor Indoor E-soil, soilless, coco, aero, or hydroponic Soil E-specific medium 10L Pots CSL-Soil type/brand Bio Bizz All Mix Rating: 5