alright, so long story short.

Im in a dwc bubbler, res is nice and clean & running a benny tea, no root slime etc. so, root zone is a-ok.

the issue im having:
worst looking leaves

from the top

this all started happening about a week and a half ago. Soon as i changed my res.

the nute mix is 18 liter res, with advanced nutrients 3 part.

20ml micro
20ml grow
10ml bloom
20ml calmag

930ppm
5.6ph

the leaves themselves turn yellow, and crispy, then brown. Im thinking maybe too high of PPM for her, as shes under 200 watts of cfl currently.

the tip curling started after the other problems.

its kind of hard to see, but in the very back of the top shot, you can see some other growing shoots starting to lighten up around the edges, and stay dark green in the center.

temps sit around 75F all day, and 70F at night.. hottest it has gotten so far, is 77F.

the plants pretty old, had some pretty harsh times with root rot etc, and i ended up chopping off all her roots, and praying she would come back… which she did, and with some serious vigor. then all of a sudden slowed down, and got this happening.

like i said above, im thinking over fert. but i want some other opinions before i start to lower the PPM.

thanks for the look!
Via help identify a nutrient problem.

I am 6 days into flowering and have noticed two things.. one the lower half of the plants leaf tips are curling down which i think is P so therefore not enough nutrients but at the same time every top is bright yellow almost looks like nutrient burn. To anyone that has tried growing this strain were your tops bright yellow? I have a moisture meter and only ever feed/feed/water and repeat when dry as ive read you must let them completely dry out then drench to avoid air pockets and roots growing upwards.. My feed is at 25% strength with boiled, filtered water which i dont need to PH using Plant magic plus.

The whole plant is a lush green and i have had no problems through veg really healthy and strong but bright yellow tops. I have topped twice super cropped to an extent and tied her down, ive got 8 tops bright yellow…
Via White widow problem?

I am 6 days into flowering and have noticed two things.. one the lower half of the plants leaf tips are curling down which i think is P so therefore not enough nutrients but at the same time every top is bright yellow almost looks like nutrient burn. To anyone that has tried growing this strain were your tops bright yellow? I have a moisture meter and only ever feed/feed/water and repeat when dry as ive read you must let them completely dry out then drench to avoid air pockets and roots growing upwards.. My feed is at 25% strength with boiled, filtered water which i dont need to PH using Plant magic plus.

The whole plant is a lush green and i have had no problems through veg really healthy and strong but bright yellow tops. I have topped twice super cropped to an extent and tied her down so ive got 8 tops bright yellow…
Via White Widow flower problem?

Hi to all, new to this site but looks extremely helpful. My first grow of this strain and have done some research on white widow but still confused. Shes drinking a litre of water at least every 6 hours i have organic nutrients that i feed, feed, water, feed and so on. I am 5 days into flowering and have noticed two things.. one the lower half of the plants leaf tips are curling down which i think is P so therefore not enough nutrients but at the same time every flower site is bright yellow almost looks like nutrient burn but im no expert. To anyone that has tried growing this strain were your bud sites yellow? Thats my main concern of this plant. I have a moisture meter and only ever feed/water when dry as ive read you must let them completely dry out then drench as to avoid air pockets and roots growing upwards.. Any help would be appreciated greatly as there is time to put right before it all goes wrong
Via White Widow help