Ginger punch autoflower

July 9th - watered with ph 6.5, 1 litre per plant July 10th. thirsty girls! Feed C5M2G.75B4 (1.5 gallons),ph 6.5, ppm 556 added pics of Day 51 Plants have recovered okay from nute burn on June 26th. new growth isn't showing signs of burn, but old burned leaves are still there. trimming them a little at a time to get rid of them since there's no point sending nutes to dead leaves. stems have purple streaks in them (you can see in pics from day 51). not sure if that's normal or if they are needing some nutrient I haven't given enough of. Might add an extra feed this week to see if it helps. Still being careful not to burn them again at the same time though. July 12th - Water 1 litre per plant. added 5ml calmag per gallon. ph 6.5 July 14th - feed C5 M3 G1 B4.5 (1.5 gallon of water)