1st grow week 5 flowering HELP

So my soil ph was 7 throughout my whole grow and she had no problems whatsoever, but in week 4 of flowering all my leaf tips were suddenly burned and my soil ph dropped to 5.5
I flushed once with plain, ph’ed water thinking it was nute burn or lockout,
waited for the soil to dry which was about 5 days, and soil ph climbed back up to 7 in that time.
during that time after flushing the tips did get a tiny bit worse, but barely noticeable. also the edges of random leaves started turning purple, smaller sugar leaves at the top and random lower fan leaves underneath all have purple edges creeping into the center of the leaf
last but not least all the leaves have been clawing for about 2 weeks now but I swear I haven’t overwatered, unless you count the one flush i did but i dont consider that overwatering
It’s in a fabric pot so it’s not rootbound,
99% sure it’s not a root issue at all,
it’s not temp, humidity or the lights being too close
I’ve researched forever but just keep coming up with the same:
purple leaves are P deficiency

in my case how would it get nute burn at the same time as having a P deficiency?
especially when i fed bloom nutes that are high in P
I thought sh’d be doing better now that I felt like i had her back on track, but when i got home from work today the leaf tips are really moving up leaves fast, i still have 2.5 weeks at least until harvest. IM SCARED
Help would be greatly appreciated
Here’s some pics I took tonight in regular light

Is it getting cold with lights out?

You do know that those purple leaves could just be flowering fade setting in which in then has you chasing your own tail...

For instance...

it has dropped to around 60F. purple isnt really a comcern, but the progression of the burnt tips curling up and getting worse so fast is worrying. do you think that plant will make it a few more weeks? yours looks great, btw! my white pistils started turning brownish/red around week 3, as well. don’t think thats good. yours all still look white

Need more details. Strain, breeder, environment (vent, light, nutes, temp, soil). I see a photo sativa-dom plant in pics. You say that flip to 12/12 since 5 weeks. In general it is halfway done 5 more weeks. Do not stress. Sometimes less is more. Your plant is on a death clock when in flower. Soon it will use the energy from the bottom leaves to grow the buds. In turn the leaves will wilt and fall off. Good job for a first grow. Get ready for harvest, drying, cure stage.

Sure looks like root problems to me with the tip dying back like that.

Looks like a compound of issues though

Will probably live to see harvest but that is one sad looking plant.

it dries out fine and it’s in a fabric pot so i doubt it’s root issues. and yes I know it’s a sad looking plant, that’s why I posted on here. it was perfect the whole grow until after buds formed.

Just get back on track and since you have damage drop your nutrient back a little. pH your solution around 6.5

BTW, how are you checking soil pH?

with one of those cheap 2 prong probes, measures light, soil ph, and how wet.
i think i am back on track for the most part, the curled up tips getting worse is what scares me.
i did finally deed again last night, only did 1/4 tsp of the dynagro bloom, ph’ed to 6.6.

Ahh. Yeah, those things are basically useless. There are pricey soil pH pens, and cheaper soil pH test solutions that'll get you better results. Definitely use a water pH pen or solution kit when pHing your water.

Good luck!

i use a digital ph meter to check my water, it’s pretty accurate with the buffer solutions

How accurate is your pH pen? When was the last time you calibrated? Is there a liquid keeping the pH pen probe wet? How are your temps in the space? What exactly are you feeding in how much water?

You should do a soil slurry ph test just so you know where you really stand.

it’s calibrated correctly, I check it frequently, thats just for the waterings though...
good idea on the slurry tester,
I only got the cheap tester for soil wetness when i started i was scared of overwatering, but used the ph thing on it out of curiosity.
the soil ph always read at 7 but dropped to 5.5 when i had problems in flower. but it came back up to 7 slowly over 5 days as the soil dried after the flush i did.
i think my whole problem is nute burn from not flushing at the flip.
i used calmag and ff grow big through veg, and switched brands to dynagro bloom for flower.
also, i am worried about my current grow but I really don’t want to make the same mistake again

i only fed 1/4 tsp of the dyna gro bloom after i flushed at the beginning of week 4, but the very first flowering feed after the flip i was dumb and did 2 tsp per gallon per dynagro’s chart, I’m pretty sure that and not flushing at flip is where i went wrong, weird it didnt show signs for like 2 -3 weeks though. i have great drainage, usually water 1.5 gallons and get about 20% runoff.
Rhanks a lot for taking the time to help my noob ars out

How far is your lights and What kind of light are you using ? They mite be getting too much light.

What strain? If it's a purple strain that part might be a red herring.