Yellow leaves please help.

B

Big bud J

Member
Hello to all. I can post the good. So I must post the bad.. I’m 100% here to learn. Any and all advice we’ll be appreciated !!

Now lets begin.. I have my Grape drank 6 weeks old 4weeks since 12/12 flip…plant is in fox farms happy frog . I’m only use tiger bloom three times. I think I under watered her. I watered her yesterday with 5.8 PH water only. I’m scared of burning her with nutes. She is 18 inches from light. Temps are 75/79 air flow is good. Please help see pics below. Thank you
 

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looks like the v early start of a potassium deficiency, could maybe be calmag. whats the soil ph ?
 
Big bud J said:
Hello to all. I can post the good. So I must post the bad.. I’m 100% here to learn. Any and all advice we’ll be appreciated !!

Now lets begin.. I have my Grape drank 6 weeks old 4weeks since 12/12 flip…plant is in fox farms happy frog . I’m only use tiger bloom three times. I think I under watered her. I watered her yesterday with 5.8 PH water only. I’m scared of burning her with nutes. She is 18 inches from light. Temps are 75/79 air flow is good. Please help see pics below. Thank you
Click to expand...
Low soil pH. Why are you watering with 5.8 water in soil?
 
Big bud J said:
I’ll add some cal mag to watering. How much per gallon of water?
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id stay away from adding any cal/mag its already gonna be in your soil it just wont be available to your plants to uptake well if the ph is off, id focus on getting yout plants back to the right ph otherwise you risk locking them out by adding access
 
LJ00 said:
id stay away from adding any cal/mag its already gonna be in your soil it just wont be available to your plants to uptake well if the ph is off, id focus on getting yout plants back to the right ph otherwise you risk locking them out by adding access
Click to expand...
So flush with 6,0 Ph water?
 
No …..

Correct the ph in your water / feed to match medium used ( 6.5 -6.7 for drift ). HF as with most of fox farm bagged chimes
in around 6.3 .

Zero need to check runoff.
 
if you've got that ph stick push it into a soft spot of the soil thatll tell you the ph of the base soil. was the water you put through it 6.2?
 
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