Whats going on now >.< (Leaves)

Here are some pics of leaves. Flushed all the plants with leave damage because i figured it was calmag build up. (using calmag with tapwater) Figured it could be a ph lockout. Not a seasoned grower, so im totally down for insight. Various auto flower strains grown indoors, in fox farms ocean forest soil, water every 2-3 days as needed. 3 gal pots. Fed once a week. These ladies are about six week old. Flushed with ph balanced water... it seems to have slowed down the damage but its slowly progressing.

just a bump

nute burn imo, probably due to lockout from your tap water. tap water is a no go in my view, ph is off and added unwanted chems in there.
Buy spring water, itll cost you but flush it with the spring water then water with that as well in the future

First of all nice name... Ratm rocks for sure. Nute burn im doubting... deficiency.. prolly due to lock out. The tap water thing i really doubt. Been growing at this location for almost a year and all of my photoperiod plants were great on the water. ph is usually around 7 and i have to add just a little bit of ph up after nutes. Using all organic nutes, low impact. I agree about the unwanted chems in there. Just after growing so many white rhino and lemon haze photo's... perfectly fine... i dont see why it would effect my auto flowers so drastically. Thank you for your response... definatly got the wheels turning.

What does the uppermost foliage look like? Could be mild nuteburn. Are the leaves dark green with burn tips? Any downward curl towards the tips? I never grew autos before, but I have seen the differences in nute requirements between different strains. Sometimes a feeding schedule that'll keep one strain perfectly happy, will burn another. Just a possibility.....

The upper leaves look great... it was progressing towards the top of the plant but the flush seemed to slow or even (hopefully) stop it. Keeping a close eye on them and putting pure water through them for the next week. Tips were not burnt but they were pointing down which as you said was a sign to me of 2 many nutes. I just kinda ignored it because i thought it was pretty hard to nute burn with organics. Rocknratm was on point with that. Also some sideways twisting of the tips which i have never seen before. I guess FFOF is just that hot? Anyway.. i genuinely appreciate the input guys. Thanks again.