1/16 giving me a problem ive never seen, might as well make a diary, 4 strains, grnpoint & blmbrn

On week 3, tall fabric pots 3gal, 76-79F, 68% humidity, I have hard watter but by its self it phs at 6.3 lol in using leftover nutes from my last run (pics included) general hydroponics micro and veg, and...