Leaves curling and tips burnt. What's going on here?

[Worldseriesofweed]

Not sure what the issue is here.

 

[Diabolical666]

Heat stress?

 

[Worldseriesofweed]

Heat stress?

I don't think it is. It's 36 inches from the light hood. Which has 1000 watt hps light. The temp hasn't been over 78ْ or under 57ْ. I'm not sure if I may be under watering though.

 

[Terry385]

You just transplanted them how they look before transplant

 

[John Wick]

Are you watering with fertilizer or nutrients? . If so I'd thin out your mixture a little bit. Are you using tap water?

 

[Worldseriesofweed]

You just transplanted them how they look before transplant

They looked pretty much the same minus the curling. I am not using any nutes and I am using tap water.

 

[John Wick]

You know what? They actually look pretty good. I don't think it's a big problem. I've had similar colors and I switched to using purified water from the store and it went away. I can't say it was the quality of water or absence of chlorine, it could have just grown out of it on its own I'm not sure. But if you wanna perfect your grow try using purified or distilled water.

 

[Terry385]

They looked pretty much the same minus the curling. I am not using any nutes and I am using tap water.

When the heat gets too high, the edges of the leaves will begin to curl up
1000 watt hps light. i tried in my 5 x 5 tent temp was over 100 degrees