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I added a couple pics of what looks like rust spot...

diamondtrichomes
diamondtrichomesstarted grow question 7y ago
I added a couple pics of what looks like rust spots on the leaves of only the tall plant in 7 gallon. Iโ€™ve given these two plants the exact same feeding so not sure what is causing it.
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Week 5
Leaves. Color - Dark-brown
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Athos
Athosanswered grow question 7y ago
Looks like calcium deficiency, specially since it it's happened on the top leaves.
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TropicThunder
TropicThunderanswered grow question 7y ago
Looks like iron or calcium to me.. Happy growing friend
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Lil_Teddy
Lil_Teddy
what cause it๏ผŒIs it normal?
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
2
5