Potassium or Magnesium?

Nootnam

Well-Known Member
Shit leaf.jpg
The rest of the plant is doing fine, its just the bigger fan leaves that have started doing this.. A lot have fallen off but the plant is pretty big so I still have a ton of green healthy leaves, just want to get this corrected
 

churchhaze

Well-Known Member
Potassium or phosphorous. It doesn't look like magnesium deficiency to me. You say it's only affecting the larger fan leaves so it has to be a macro nutrient, so it's not Ca, or Fe.
 

Nootnam

Well-Known Member
Yea fed her the other day with some basic npk nutes and it most definitely helped.. How accurate are the pH dropper kits that you check the ph by matching the color of the water to the colors on the label? Cause that's all I got right now till I get a real meter
 

Jimdamick

Well-Known Member
Magnesium deficiency will give your leaves that white look. I add kelp to my nutes because it contains decent amounts of it, along with potassium and other micronutrients needed by the plant. Try some, I swear by it. Good luck
 

SnotBoogie

Well-Known Member
Remember you MUST compare blotter strips within 10-15 seconds or they will always revert to the same colour.
 

Nootnam

Well-Known Member
Thanks guys. Its not blotter strips, its a little container that I put the water in then drop 3 or 4 drops of some solution then the water changes color
 

Nootnam

Well-Known Member
Magnesium deficiency will give your leaves that white look. I add kelp to my nutes because it contains decent amounts of it, along with potassium and other micronutrients needed by the plant. Try some, I swear by it. Good luck
How do you add kelp and where do you get it from?
 
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