Easyryder brown spots?

My easyryder is about 2 months old. it entered flowering about 2 weeks ago and everything is going well. the only problem is the small brown spots you can see in the picture, the leaf tips are also curling down. The majority of hte leaf is very healthy, only the tip drops off like that. I am growing in foxfarm ocean forest soil, and using flowering, vegetative and micro nutrients. Any suggestions?

nute burn, flush then only use micro and bloom, over doing nutes is way worse then under doing them