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Looking for some help diagnosing my girls

Dustyi0

Member
SOIL GROW

Strain - Durban Poison (Sativa)
# of Plants - 12
Grow Type - Soil
Grow Stage - Vegetative
Bucket Size - 5 Gallon
Lights - (1) 400 Watt HPS
Nutrients - advanced nutrients ph perfect
Medium - fox farm ocean
PPM dose by bottle
PH - 6.2
RH - 50% to 55%
Room Temperature 21- 24 degrees
Solution Temperature

Pests - None Known

Getting some yellowing at the tips and curling leafs on one of my girls.

I flushed with 6.5 ph r.o water today. Run off was 4.5. My nutrient solution is always around 6.2. It’s ph perfect so it self adjusts.

Any help appreciated. Any questions fire away.

Thanks
Dusty.
 

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Last edited:

Lowrider72

Well-Known Member
Never ever take ph as a given. Get a cheap one drop test kit.
Looks like ph is out, also something is hot....as in too much nutes or something, hence your tip burn.
Water less, check ph, and lay off the nutes a tad , should go ok.
 

Dustyi0

Member
thanks for the reply lowrider,
I have a ph pen and always check ph before watering. I check it every time but the ph perfect always put the ph to 6.2 no matter what the water is before I add it.

Today when I flushed with 6.5 ph reverse osmosis water the run off was 4.5. Is this normal or do I have a problem.
 

Dustyi0

Member
Also I should add that I noticed the yellowing on all the girls about a week ago. So when it was time to feed I gave two of them their regular advanced nutrients feeding and the other two I gave plain water ph’d to 6.5.

The two that got straight water did not get worse the ones I fed are the problem ones in the pic. So I flushed the two that got fed today. Which is why they are looking over watered I guess.

From my little experiment im thinking I went a little heavy on the feeding. But I still wanted to ask for other opinions I case I’m missing something obvious.

Thanks

Dusty
 

Backlipslide

Member of the Month: Mar 2020 - Plant of the Month: Feb 2020 - Nug of the Month: Feb 2020, Oct 2020
The run off does seem low, you could get some dolomitic limestone, or Pulverized limestone if you don’t need to add magnesium to your soil, it is the most common and inexpensive acid neutralizer.

1768041
 

Backlipslide

Member of the Month: Mar 2020 - Plant of the Month: Feb 2020 - Nug of the Month: Feb 2020, Oct 2020

Lowrider72

Well-Known Member
thanks for the reply lowrider,
I have a ph pen and always check ph before watering. I check it every time but the ph perfect always put the ph to 6.2 no matter what the water is before I add it.

Today when I flushed with 6.5 ph reverse osmosis water the run off was 4.5. Is this normal or do I have a problem.
This run off worries me, should always come out higher......
If those perfect nutes balance at 6.2 then its not ph pen.
This is why I run coco not soil...
Also I should add that I noticed the yellowing on all the girls about a week ago. So when it was time to feed I gave two of them their regular advanced nutrients feeding and the other two I gave plain water ph’d to 6.5.

The two that got straight water did not get worse the ones I fed are the problem ones in the pic. So I flushed the two that got fed today. Which is why they are looking over watered I guess.

From my little experiment im thinking I went a little heavy on the feeding. But I still wanted to ask for other opinions I case I’m missing something obvious.

Thanks

Dusty
Heavy feed explains the burn not the low ph yet.....
The run off does seem low, you could get some dolomitic limestone, or Pulverized limestone if you don’t need to add magnesium to your soil, it is the most common and inexpensive acid neutralizer.

1768041
This man is onto it ! dolomite limestone, that will pull down ph in soil, must be super acidic.
I have used in the past to add to cheap coco, but go easy on it....
 

Dustyi0

Member
Thanks for the reply guys. Plants seem to be doing a lot better, the two I flushed picked their leaves back up after a day.

Gonna keep a close eye on them. Also I’m going to switch to another brand nutrient package. My ph perfect package is about 10 years old and I don’t trust it.

Anyone want to suggest a brand to go with. I’ve been thinking about Remo nutes.

Happy growing guys.

-dusty
 
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