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Brown spots on leafs
Buffer7572started grow question 10 days ago
Two of the plants (#1 and #2) are getting a few brown spots on a a few leafs. Does anyone have a clue what the reason could be? Should I give them some CalMag? I've added photos in the latest week showing the issues.
Solved
Week 6 like
BerrySweetHighanswered grow question 10 days ago
Hello Buffer7572,
The tips are burning because of nutrient burning. You need to water till 20% runoff to prevent nutrient salts building up inside the soil and causing the EC in the soil to raise.
The other brown spots are caused by a calcium deficiency. This could have 2 reasons.
The first reason is that you do not provide enough Calcium. You can solve this by adding a Cal-Mag supplement into your feeding schedule.
The second reason can be that the pH is off causing a nutrient lockout for Calcium. You can solve this by providing the plant with a nutrient solution with pH 6.5 every time you feed or water.
Happy Growing Buddy! 💚