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PostPosted: May 21st, '20, 13:03 
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Can anyone help me to diagnose what cause this yellowing leaves? My aquaponics ph is 8.2 but I have added eddha iron to the system. I even foliar spray cheated magnesium and yellowing leaves are still there.


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PostPosted: May 22nd, '20, 01:06 
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Doesn't look like iron since the new leaves are nice and green. I was going to say magnesium but looks like you've got that covered. What have you been using for the magnesium spray, how much and how long?


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PostPosted: May 23rd, '20, 09:27 
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Iron would definitely be locked out with a ph that high..

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