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Sick Plant still the same plant as before, i am leaning towards calcium deficiency or iron excess

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ghostdog
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Eucalipto
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it is a rdwc with 4 plants and only one is showing this on lower leaves, the new ones are perfect and the growth is just slightly slower of the others

Grow Medium
Temperature C/F : (Light on/off)
Humidity
Picture of Problem
1619542796-IMG_20210410_094858-Copia.jpg
Nutrients

advanced hydroponics micro
advanced hydroponics bloom
advanced hydroponics grow

pH Level
EC / PPM / TDS of Feed

1.383 ec slightly falling

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ghostdog
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the picture was one week old this is a more recent one

IMG 20210427 184028   Copia

Β 

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Macky
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can we get a pic of the whole plant mate? Where on the plant is this leaf?

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ghostdog
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for sure you can, sorry did not know it was required, it is a lower leaf, i have marked it in red. the other leaves and the other 3 plants do not show this issue

IMG 20210427 214920   Copia
IMG 20210427 214953   Copia

Β 

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WoodI2
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OG
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@ghostdog, hey again. Here's some basic 101 stuff you probably already know but helps to revisit sometimes.

Mobile elements:Β  nitrogen, phosphorous, potassium, magnesium, and zinc. Typically develop visual deficiencies in older leaves.

Immobile elements: Sulphur, calcium, iron, manganese, chlorine, boron, copper, molybdenum, sodium, silicon, and cobalt on the other hand develop deficiencies in younger leaves first and progress down.Β 

Bacteria: that inhibits a plants growth are surprisingly common. The plant itself might show symptoms of many different deficiencies at once, this is because the bacteria is obstructing and/or consuming nutrients that the plant needs. Symptoms may include PH dropping or rising more than 1 within 12 hours.Β 

I like the visual charts too, hope this helps.Β  Β  Β peace

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Rufio
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Myrcene
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If that’s the only area affected could it be how close it is to the reflective material? When my tent was full the first leaves to go β€œoff” looking were touching the sides.Β 

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