What’s wrong with my leaves???

[crypto03]

Is this lighting or nutrient issue causing these marking??

 

[jetbtkng]

how close is your light & what setting is it on, what nutes u using & more pics...

 

[crypto03]

how close is your light & what setting is it on, what nutes u using & more pics...

I just replaced my light yesterday with a MarsHydro ts1000 150watt I was running it at 100% since now I have dialled it back to 75% just in case I’m cooking them. (Someone said 150 watt at 100% won’t cook them). They are fairly close at 30-40cm distance to light as my tent is small and it’s all I have for now. They are in coco and being fed every 5 days 4ml to 1l for both fertiliser (as per guided recommended)

 

[jetbtkng]

way too close, about 30 inches & try 50% light

 

[WiseWaterer87]

It could be a light burn or maybe a nutrient imbalance.