brown edges and crispy and curling upwards

hello every im using coco 70% and 30% perlite I'm feeding once a day im using 250w hps and canna brand nutes im vegging temps stay around 25.4c lights on and 20c when lights off please help leaves are starting to brown edges and tips and yellow crispy and curling upwards few leaves that fell off plant

Are you late in flower? Vegging? Pic? More info?

id guess n or phos or k, lockout, if ph is good feed at 5.4ph once anyway. This is healthy die off. 50 days since flip.

Southernontariogrower said:

id guess n or phos or k, lockout, if ph is good feed at 5.4ph once anyway.

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Question for you. Why are you saying to feed at 5.4 anyways? Coco ph range is 5.5- 6.5 correct?

Humboldtcalikidd said:

Are you late in flower? Vegging? Pic? More info?

Click to expand...

vegging bro