Brown tips, is it nute burn?

Bushbaby11

Well-Known Member
whats up guys!
Im grown 2 amnesia haze in 25L pots (dwc)
Using vitalink max bloom a & b
Using vitalink buddy

In 5th week nearly 6th of flower they are smelling lovey and are proper sticky
Iv noticed browning on tips
My ec was 2.0-2.2
I topped up with water so its now 1.6-1.8

Just need to know if it is nute burn?
 

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