need help, think its a ph prob... please help

Starting to get dying leaves and getting yellow spots and drying out. I tested my ph and i know its low. I've read a bunch of threads,seen vids and feel i've done my homework but still need help. any input is much appreciated.

Details:
about 6 weeks old on a 24 hour light cycle
i think i have 4 or 5 nodes and been trying LST
temp at 75-85
Watering every 2 or 3 days (use finger test)
just started using fox farm grow big (only 1 treatment so far)

**wanting to start 12/12 in 2 or 3 weeks

my questions are:
If I have water at a ph of 7 and my plant has a low ph, Do i just adjust the water (to 6. to what i need to get back to the correct ph?

Can i trim some leaves off? maybe the big 3pedal ones?

Can i/should i trim the dying leaves?

Looks like your using soil(water ph 6.5 normally, adjust to your nutrients), usually requires high PH opposed to hydro which requires 5.8.
Also Looks more like necro spots, rather then multi nutrient lockout. Get some micro nutrients, usually the best thing to get is some cal/mag, rather then concentrated individual nutrients.
I wouldn't trim leaves until their touching the dirt(the ones that are half way dead).

Sorry im really baked, smoked a couple bong hits of hash.

If your LSTing and you have huge fan leaves blocking new shoots I would trim them. I did in the grow, there was 4 or 5 on each plant blocking the new shoots. It shouldn't cause too much stress unless you completely rip the stems off the stalk.

View attachment 1748356


5.1-5.8 for hydro

6.2-6.9 for soil, thats my advice

Marlboro47 said:

Looks like your using soil(water ph 6.5 normally, adjust to your nutrients), usually requires high PH opposed to hydro which requires 5.8.
Also Looks more like necro spots, rather then multi nutrient lockout. Get some micro nutrients, usually the best thing to get is some cal/mag, rather then concentrated individual nutrients.
I wouldn't trim leaves until their touching the dirt(the ones that are half way dead).

Sorry im really baked, smoked a couple bong hits of hash.

If your LSTing and you have huge fan leaves blocking new shoots I would trim them. I did in the grow, there was 4 or 5 on each plant blocking the new shoots. It shouldn't cause too much stress unless you completely rip the stems off the stalk.

Click to expand...

+ rep to both.thanks for the answers.

So malb47:

You saying I should use cal mag + fox farm or just cal mag?
And just to recap,i should just water with correct ph and the soil should come around, right?

Thanks again!

Anyone else have any thoughts?