PLEASE HELP: Yellowing, brown spots

  • Thread starter TentGuy
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TentGuy

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Dear THCFarmers

Since a couple of days, my clones show some yellowing and brown spots, I googled and searched a lot, but I am just not sure what exactly I did wrong or what is happening.

Information: All plants show the same symptoms in varying degrees.

The fan at the bottom is OFF.
Lights switched to 12/12 as of yesterday 03.11.2022

Soil: BioBizz LightMIx
PH: 6.1-6.2
First Feed @1.5 Weeks: 1.5ML /4L Of Remo's Grow line
Second Feed @ 2.5 Weeks: 4ML /4L Of Remo's Grow line
Last Feed: 7ML /4L Of Remo's Bloom line ( Did that, because my friend told me this looks like a Potassium deficency)

Attached a couple pictures.

Thank you in advance for all your help.
 
Please help yellowing brown spots
Please help yellowing brown spots 2
Please help yellowing brown spots 3
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