Light spots on upper leaves during flower

[2budz]

I get these on all my plants. Doesn’t really seem to be to big an issue the leaves don’t die or anything. Just get these light blotches. Anyone recognize the issue?

 

[Rasterman]

I read this and had no clue. Then I was on another site obsessing, and saw a picture that made me think it might be a potassium deficiency (might).

Potassium Deficiency In Cannabis: How Can I Spot And Treat It?

If you’re seeing weird discolorations and stunted growth in your marijuana garden, potassium deficiency might be responsible. Using our guide, you’ll be able to identify and solve potassium deficiency whenever it rears its ugly head.

herbiesheadshop.com

 

[2budz]

I read this and had no clue. Then I was on another site obsessing, and saw a picture that made me think it might be a potassium deficiency (might).

Potassium Deficiency In Cannabis: How Can I Spot And Treat It?

If you’re seeing weird discolorations and stunted growth in your marijuana garden, potassium deficiency might be responsible. Using our guide, you’ll be able to identify and solve potassium deficiency whenever it rears its ugly head.

herbiesheadshop.com

Hmm. I’ve been feeding a 0-50-30 so now I’m wondering if it’s the opposite. And I always feed the same stuff in flower. So that would make sense why I have them on all my plants.

 

[Rasterman]

Hmm. I’ve been feeding a 0-50-30 so now I’m wondering if it’s the opposite. And I always feed the same stuff in flower. So that would make sense why I have them on all my plants.

No idea - just a thought.

 

[2budz]

No idea - just a thought.

I think you’re definitely on the right track. I read the article and I don’t think it would be a deficiency based simply on what/how much I feed in flower. I could be wrong though.

 

[Mañ'O'Green]

I would need to see your entire feed schedule but too much Calcium and Magnesium can be locking out your K. The other thing is genetics and the natural fade at the end of the plants life.

0-50-30 is very strong and it would be easy to overdo it with that product. Nutrient "Balance" is key.

Tutorial - A word on Nutrients

The proper use of “salt” based fertilizer to grow Auto Flowering Cannabis. Salts: Natural and man made any chemical compound formed from the reaction of an acid with a base, with all or part of the hydrogen of the acid replaced by a metal or other cation. Learning how to use salt based...

www.autoflower.org

 

[2budz]

I would need to see your entire feed schedule but too much Calcium and Magnesium can be locking out your K. The other thing is genetics and the natural fade at the end of the plants life.

0-50-30 is very strong and it would be easy to overdo it with that product. Nutrient "Balance" is key.

Tutorial - A word on Nutrients

The proper use of “salt” based fertilizer to grow Auto Flowering Cannabis. Salts: Natural and man made any chemical compound formed from the reaction of an acid with a base, with all or part of the hydrogen of the acid replaced by a metal or other cation. Learning how to use salt based...

www.autoflower.org

I threw my calmag away at your direction lol. I use soil and I’ve seen you say multiple times you don’t need to add any. I use to add it every feed at 5ml/gal. The 0-50-30 is Beastie Bloomz. I’ve been doing a half dose along with a 5ml/gal dose of gold leaf and 6ml/gal fish sh!t. These weird light colored blotches have happened on every single plant I’ve grown but haven’t killed the leaves. Also, I have been in the habit of having my lights very close to my plants once they’re in flower so it could be that as well. Kind of trying to get away from that. Doesn’t seem to help really.

 

[Mañ'O'Green]

It is possible that you actually need more K and less P.

Post some pictures of the whole plants.

 

[2budz]

 

[2budz]

Zooming in on the pics I think it’s over feeding rather than under. You know I really have no clue so your input is appreciated @Mañ'O'Green. I do feed pretty heavily in flower so I wouldn’t be surprised.