Defeciency or heat stress

Hey everyone, im about 3 weeks into veg. Starting to notice discoloring in some the old and new growth. I have been feeding with foxfarm ferts, in a foxfarm ocean forest soil. PH of my ferts are always bewteen 6.3-6.5 and the average temps are at 79-86 F. I sarted at 1/4 strenght feedings, which is when i began to notice the "yellowing"..so about 3 days later i did a flush and began to feed at normal strenght.....It seems to start at the very tip of the leaf and then gradually absorb the whole leaf matter......4 girls in total, 2 pics of each one

Nute burn. Repot into something larger and only give it water for a couple of waterings. Be carefull with the fox farm nutes. I go Feed- Water-Water- Feed.

you got Evan Wiiliams, you can't be all bad!

ocean forest doesn't need much in the way of added ferts, at least not for several weeks. not sure how long you can just on that soil alone, but dark green leaves and leaf tip death mean you are over ferting this plant. just water for a while, let the soil dry out, water again and see how things look after a few weeks.

only water and look at the leaves they will tell you when to use ferts