Help with what’s causing these tips?

Djw19859

Active Member
My log

 

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hotrodharley

Well-Known Member
My log

You don’t say anything about your feeds. It appears developing potassium deficiency and not nitrogen toxicity. But guessing without the specifics.
 

Djw19859

Active Member
You don’t say anything about your feeds. It appears developing potassium deficiency and not nitrogen toxicity. But guessing without the specifics.
Sorry, thought I had it in there, I’m currently in a 2:1 oceanforest hp promix, feeding medione at 4mL per L and my light is at 38” pulling just over 300 watts
 

Djw19859

Active Member
I went with the cheap black and yellow PH meter, Milwaukee's Best. It doesn't work right.

The bluelabs PH pen I have is stable and works consistently. Although the buttons went funky on me but I recommend.

I have a nice ph meter, meant ec or ppm meter, thanks though.
another one is doing this now, I just gave them all 2 gallons of water today, last feeding was at transplant 4 days ago and they where watered and fed until run off then.
 

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hotrodharley

Well-Known Member
I have a nice ph meter, meant ec or ppm meter, thanks though.
another one is doing this now, I just gave them all 2 gallons of water today, last feeding was at transplant 4 days ago and they where watered and fed until run off then.
Use litmus paper for pH. It’s more than adequate for our purposes. Use the money you saved from buying a pH meter to buy a real EC meter. And never consider coco.
 

cobshopgrow

Well-Known Member
Apera do solid EC meters too, their cheaper one without replacable electrode is fine.
see the one you get have a platimun coated electrode, theyre black its easy to see.
 
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