The Grow Awards 2026 🏆 
Nitrogen toxicity?
RallyAutosstarted grow question 5y ago
Are these dying leaves a result of the nitrogen toxicity or something else? Thanks for all your help!
Solved
Leaves. Other
likes
The8thChevronanswered grow question 5y ago
Could be really bad light stress...
My guess would be that a high PK nute has locked out calmag and other micronutrients. If you're using a booster, roll it back a bit.
As always, check your pH and EC going in and coming out.
Fruitgroweranswered grow question 5y ago
I had this before and although not entirely sure I put it down to a pk overdose. N Overdose looks very different - dark green claws.
likes
Complain
Similar Grow Questions
Solved
WishiFishi
Ripple leaves, is it a problem?This plant has not been growing as fast as I expected, she started with 3 branch nodes, switched to 4 branch nodes, then topped herself, now I have taken all of the bottom sucker branches off. she IS a little soaked, so maybe its over watering? but what do the ripples mean?5y ago
1
1
Solved
AlpAge_Cino
yellow/brown spots on lower leavesHi, 2 of 8 got yellow/brown spots on lower leaves. I've watered them once a week and add calmag, pH=6,2 following b.a.c. instructions. Last watering, i forgot calmag so I did a second watering 5 days later with calmag. What could be the problem ?2y ago
2
2
Solved
malumalu
How they are goingHow they are performing day 50 100 watts 5 gal bucket How many time for harvestBuds. Other
Leaves. Other
Feeding. Deficiences
3y ago
2
Solved
theplantdaddy
LIGHT STRESS? VIGOROUS GROWTH SIGNS? OR NUTRIENT IMBALANCE?Not sure if I have light stress, nute issues? growth rates are defined explosive, leaves large and green. I hit 36 DLI one day in the most recent week and I felt like they weren't ready. Temps 84f humidity 72%. Ppm 400-450 ish. DLI 30 usually.Week 3
Leaves. Other
5y ago
4
4
Solved
Birch_trees_breeze
How can I turn thing back good againMy ph is running around 6.5 in the soil how can I fix this when all the nutes are around thatplease?? And these almost burnt but not burnt in colour crispy spots that crumble when you touch them have have appeared on the leafs could anybody tell me what this is down to thanks 🕵️♂️5y ago
1
1
Solved
RastaMouse
after 2 weeks I m very worried about my lady’s. at first I thought it was over feeding so flushed the bed and started again. I had left my pump on constant so put it back to timer. But I m still getting a lot of brown spotting on leafs and there dying from the edge in root rot??Week 11
Leaves. Other
7y ago
2
1
Solved
Wilflay
C02 exhaust bagHi. I wanted to know if adding a CO2 exhaust bag in a small grow tent (60x60cm) is effective for overall growth? I'm European and most off my pairs said it was useless but the topics dated from 2010s and I couldn't find current definitive argument so... here I am.Leaves. Other
Feeding. Other
5y ago
4
3
Solved
NarcissisticEcho
Does it look healthy?)Does she look healthy? I just did FIM.
She looks pretty fine for me, but leaves' colour is not even or uniform. Somewhere is dark green, and some is light.
Old leaves have some yellow spots, but I guess it was water drops' burn
I'm growing for fun btw, don't take so seriousLeaves. Color - Pale
Leaves. Other
Plant. Too short
4y ago
1
