botanicare kind

Hi all, Just wondered if any of the more seasoned guys on here have a bit of advice for me at all? So I am using the full range of Botanicare KIND products for my 15 gallon DWC system. I am wondering whether it is a good idea to introduce GROW back into the middle to late stage of flowering...

Any thoughts what May be causing this chlorosis to show up around week 5? chlorotic growth starting from the tips on the mid-upper plant with purpling of stems and petioles tat continues to worsen till harvest with a significant reduction in yield? Using botanicare kind@8ox base, 18oz bloom in...