Whats wrong with my plant? day 42 flower

ok guys got a little problem im thinking. I am roughly on day 42 of flower or + or - a day or two. I use dutch masters one. flower nutes nothing else. i try to keep the ph around 5.7. but it drifts up some when i add in water but i get it back down to around 5.7 i wont adjust it if its 6.0-6.2 though. i tend to slack on the ph level as its so hard to get right the first time after i do a res change. also use 17% peroxide 2-4ml/gal. just to keep my roots healtyh. I am set up in a DWC. 5 gallon cooler. my ppm was around 800-815. water temp never goes over 68. mostly around 66. i was having yellowing issues i lowered it to around 600ppm and not getting any better. My leaves feel a little crispy is some spots but more dry than crispy. any help that is actual help i will rep u. i dont wanna lose this plant as its my first real grow that i actually got something out of hopefully

How much longer does the plant have to go? It looks like it could be from nute burn or the ph is throwing it off a bit. I'd say cut back on the ppm of the nutes and try to bring your ph a bit lower.
Just my 2 cents.

half strength then or what? i already cut it down from 800-600ppm.

im also not sure how long it has to go. im going to give it another 3 or 4 weeks though. im just checking the trichomes. guess their part cloudy now. a few cloudy a few still clear

yeah drop it down some more, half would be a good start, you have to kinda play with settings to see what your plant likes. No two genetics and set of conditions are the exact same ya know?
I'd vote if you drop the PPM's though, it will discontinue its leaf discoloration and drying up.

alright im going to change the res today man. thanks for the info

ok changed the res. scrubbed it good. cleaned the air stones and lines too...

ppm is at 420 what a number lol. ph is set to 5.6. it will drift up some so ill set it again in a few hours. I also added 8ml of 17%peroxide 2.75 gallons. and 30 ml of clearex. i had it so i figured i'd use it. idk if it will be good or not but hey why not. probably shouldnt have though lol

Try and keep your Ph bang on 5.8. Your crispy leaves is due to over nutes. Back off abit matey.

its just so hard to keep the ph steady. I ok I usually do 1ml/gal. of ph down the liquid stuff because that's what the guy at,the hydro store wrote on the bottle for me. but I just follow it because I don't want to put to much in it. how much is to much ph down?

Looks like light bleaching

to much light? I have a 400 watt air cooled. 10" above the tip of the main cola.

Frito Bandito420 said:

its just so hard to keep the ph steady. I ok I usually do 1ml/gal. of ph down the liquid stuff because that's what the guy at,the hydro store wrote on the bottle for me. but I just follow it because I don't want to put to much in it. how much is to much ph down?

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Have you not got a ph tester? You really need one mate. When i clean resivour out and fill with water it approx takes me 25
ml to get my 100ltr water down from 7.3 to 5.8. A Ph swing could lock out the nutes and then will cause other problems

PH problem or nute burn. If PH is okay, then I would definitely say too many nutes. Or if your PH is screwed up, you might have some sort of lockout issue.

I do have a ph meter. I just been careless with adjusting. maybe not paying enough attention to it. but its getting back on track now.