why are the tips of the leaves like this? Help me

[IndoorCookie]

Hello everyone I'm growing a Buddha purple kush autoflowering, today I'm at 24 day, ground lightmix hps 250w 35 cm from the plant, I only fertilized once and that's it. Why are the leaf tips like that? Again I only fertilized once then never again. Help Me

Start blooming

 

[bibi40]

Plants just said you she' s well feeded , just a little too much of N , be smooth with the feedings for now ,
nothing really bad at the moment .

 

[The_Skunkist]

Hello everyone I'm growing a Buddha purple kush autoflowering, today I'm at 24 day, ground lightmix hps 250w 35 cm from the plant, I only fertilized once and that's it. Why are the leaf tips like that? Again I only fertilized once then never again. Help Me

Start blooming

She says lack of magnesium .

 

[bibi40]

Thanks for the info ,
i always thought that it was due to a little overfeeding , but i was wrong , thanks for correct me .