What is this?? Potassium def? Manganese def? Or do I need som Cal-Mag cuz of 12/12?

Ok so I have a female in the flowering stage and she's developing spots on her leaves. According to my chart and books it's a P def or a Mn def, but not sure...could it be I need a cal-mag and will a blooming nute have it? Help I'm lost..lol..

Blanched tips = first sign of nute burn. Beginning sharkstooth looks like as well - also a sign of N overload. However you can still add cal/mag alone in water. Even better add 1 or 2 teaspoons lemon juice along with the cal/mag/water mix.

hotrodharley said:

Blanched tips = first sign of nute burn. Beginning sharkstooth looks like as well - also a sign of N overload. However you can still add cal/mag alone in water. Even better add 1 or 2 teaspoons lemon juice along with the cal/mag/water mix.

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ya the tips were from a nute burn and they never healed, but the spots (and sharkstooth, thought I over watered??) started like 2 days ago, after I put her in 12/12 (for about 8 days now)...I will start a cal-mag w/lemon next watering thanx hotrod, it's my first and I want to bring her full term..lol..should I start slow with that that, or give her full dose?, she was on nutes while veggin...

I was going to suggest a P def, i see you already are considering it.
The Red stems and the spots started on mine. It was PH that was off but it started the same way. However, I also had a nitro def due to the same ph issue so it's difficult to compare.

Can you confirm your getting a good PH with run off and if u are, are u light on the P by any chance? 6 days into flowering and then you started getting this, it also points to a flowering related nute. Which fits the P theory.

I was gonna suggest checking your pH and making sure its not "lock-out"... I add cal-mag to my plain water every time I water... I would start there

theTinker said:

I was going to suggest a P def, i see you already are considering it.
The Red stems and the spots started on mine. It was PH that was off but it started the same way. However, I also had a nitro def due to the same ph issue so it's difficult to compare.

Can you confirm your getting a good PH with run off and if u are, are u light on the P by any chance? 6 days into flowering and then you started getting this, it also points to a flowering related nute. Which fits the P theory.

Click to expand...

PersonalJesus said:

I was gonna suggest checking your pH and making sure its not "lock-out"... I add cal-mag to my plain water every time I water... I would start there

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The PH meters I had always read 7 on everthing!! Got some test strips and PHed at 6.5 (with Brita faucet filter), the run-off came out at 6.8 & 6.9 w/test strips...I had a feeling she was in too small a pot so I transplanted her from a 3gal into a 5gal bucket after drilling holes all over the bottom and the side on bottom as well, her roots were all down the sides & built up at the bottom (not good). I still have yet to get cal-mag but will tomorrow, fed her some Alaska Mor Bloom 0-10-10, don't know what else to do...

On a good note we have a new member of the family, it is a bagseed from some Silver Haze, it was the only one in an Oz..and thanx for the help guys, and anymore advice is always welcome..