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Large fan leaves yellowing and dying. First grow.

Osirus

New Member
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SOIL GROW

Strain - Big girl is Northern lights/indica hybrid , Little girl is Unknown.
# of Plants - 2
Grow Type - Soil
Grow Stage - Vegetative
Bucket Size - 5 Gallon
Lights - (1) 600 Watt MH
Nutrients - Bio thrive 4-3-3, only fed once at (1) tsp per half gallon in its life Jan 13. One watering before transplant into 5 Gallon.
Medium - 15% Perlite 85% Happy Frog Soil.
PPM - Unknown.
PH of water given - 7.0
Run off PH - Big girl 5.0 , Little girl 6.0
RH - 50%
Room Temperature -74°- 78° day , 66°-69° night
Solution Temperature -Unknown, room temperature.
Room Square Footage - 4x4x8
Pests - None Known

Problem: Leaves of big girl are yellowing and dying. After I added the nutrient I noticed the pH run off of Big girl dropped to 5.0, little girl was 6.0 and unaffected by the nutrient. I only had a half gallon of water at the time so I put (1) tsp to half gallon. Recommended light feeding was (2) tsp per gallon, so I just halfed it. Jan 13 was the first time I ever tried nutrient and this is what happened.. I do believe the pH is just way too low and it may be locked out. Any suggestions? I hear happy frog is a very acidy soil. BTW I only have the drops to measure pH so I just use whole decimals. Also I did a transplant Jan 16 into 5 gallon, watered with plain 7.0 water. Now just waiting for next water to correct pH.
 

Osirus

New Member
Thank you for the quick reply. Would you suggest i do a flush right away or next watering? I just watered 3 days ago, so its still fairly wet.
 

SweetLeef

New Member
Hey Osirus!

Fear not, for you are in the hands of good KingJohnC! I'm gonna send you good vibes and see what happens;)
 

Osirus

New Member
I figured the potential hazards of nute lock out are worse than over watering. Thanks for the advice, ill try it and post a follow up. It does seem rather fast.
 

Osirus

New Member
Hm.. No matter how many gallons of 7.0 (light green) i pour in it, the ph wont go any higher than 6.0 (bright yellow). Im on gallon number 20 and this is only a 5 gallon pot. It did raise it from 5.0 to 6.0 though.. Should i try adding a buffer after this soil dries out next watering?
 
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