Auto northern lights. When to start nuts?

Got a auto northern lights that sprouted on new years day.
Just wondering how these autos are with nutrients? And when to start feeding.

Using bio bizz all mix. And have got biobizz bloom and grow.

Leaves have curled a bit as well. Think it's because got a bit hot in my tent but heat issues under control now
 

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I generally let autos do their thing. A lot of them don't take to over feeding well. Its better to be lacking than abundance. Over feed stunts them bad.

There is a point you can really put the N to them to extend veg time but you have to be careful.

Another week or so you could give a 1/4 strength feed and see how they handle it.

Make sure to get 20% runoff to prevent salt buildup.
 
I generally let autos do their thing. A lot of them don't take to over feeding well. Its better to be lacking than abundance. Over feed stunts them bad.

There is a point you can really put the N to them to extend veg time but you have to be careful.

Another week or so you could give a 1/4 strength feed and see how they handle it.

Make sure to get 20% runoff to prevent salt buildup.
This right here ^^ I grew some NL autos a couple years back. Which breeder/seed bank did you get them from?
 
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