Flower advice

Currently on day 15 of flower, does everything look ok leaves look a little light

feed more check ph

Top dress with some form of bloom or flower nutrients, I like natures pride bloom

Definitely up ec abit or ph

I would not make your nutes stronger as the tips are already showing signs of nute burn, but I would change up your mix by adding more Cal-Mag and nitrogen. Some flower mixes just don’t have enough N - not uncommon. Some genetics also just make lighter leaves, looks like these may eventually turn red/purple.