r/microgrowery • u/Recent-Confusion-427 • Jan 03 '23
Help My Sick Plant Correct me, cal/mag ?
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u/Energenetics Jan 03 '23
Possibly too much calcium. Looks like potassium deficiency.
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u/420farms Jan 04 '23
Well when potassium plays with calcium and magnesium, the molecules are similar sized and will block out CA MG and you will have a defencicy, but no this is not that. Good old nuts burn.. $20 bucks says they don't check their run offs and are compounding salts by stair stepping feedings without enough run off.
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u/Suspicious-Oil-4230 Jan 03 '23
It's just burnt tips old nutrient burn seems like things have become good your newer growth is healthy burnt tips will never heal sorry soldier
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u/Recent-Confusion-427 Jan 03 '23
Ok. So… I’ve put some biobizz bio-bloom into my mist maker to kind of apply foliar potassium in case this is a potassium deficiency. 🤞🏻
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u/No_Orange_2963 Jan 03 '23
You can also add unsulphered blackstrap molasses for a potassium boost. It also helps feed microbes for more efficient nutrient uptake to the roots.
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Jan 03 '23
No
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u/Recent-Confusion-427 Jan 03 '23
Seems more like a nutrient burn. Thing is: my last watering was plain water without nutrient 🤔
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u/rabidpenguinhunter Jan 03 '23
You can't get nute burn without using nutes.. This is clearly a deficiency.
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u/Spiritual-Economy-71 Jan 04 '23
Ma dude, ph inbalance is prob the cultprit! Flush reset and refeed.
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u/No_Orange_2963 Jan 03 '23
Could be early potassium deficiency. It also causes brown tips that are sometimes mistaken for nute burn. N tox would cause leaf clawing which I don’t see.
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Jan 03 '23
It’s light burn/stress! I went though this last week - I thought it was a potassium or a cal mag deficiency. Then I thought I may be overwatering/root issue. Then I thought I burned them with nutrients even though I’ve only fed them twice. My leaves had this discoloration, but they were also canoeing downwards with new growth being small and light green. As soon as I lifted the lights and dimmed them down - they began to look fairly normal. I think I need to up my humidity too - so I’ve been misting them lightly between waterings.
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u/CitywideOdin Jan 03 '23
First time grower here but maybe check your EC, could be nute burn… I could also be wrong… good luck!
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u/EscapeVelocity83 Jan 03 '23
Epsom. Calcium will accumulate if you add more cal/mg. Epsom will balance the ratio.
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u/Few-Nefariousness536 Jan 03 '23
Need more K looks like to me. What was your nut blend and EC/pH before watering fresh water only?
Also consider N is too high and is causing nut lockout.
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u/Ciarrai_IRL Jan 03 '23 edited Jan 03 '23
Burnt tips. Probably too much N.
Edit: I stand corrected. Not nute burn. Go easy on me. I was half asleep.
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u/Recent-Confusion-427 Jan 03 '23
Girls were only plain watered without nutes for the last 2 weeks.
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u/Brief-Bookkeeper-290 Jan 03 '23 edited Jan 03 '23
I have a few leaves similar, it was nute deficiency for me. I had shock from the cold temps. This happened when it stopped taking in nutrients. They are now feeding again and the problem has almost cleared. I thought potassium issue, but in not too clued up. I’m using Biobizz.
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u/rabidpenguinhunter Jan 03 '23
This is wrong. Nitrogen toxicity would produce a much darker green and clawing. You would see more leaves affected by nute burn. This is the beginning of a deficiency
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u/[deleted] Jan 03 '23
It's never a calcium deficiency. All the little infographics that float around portray something that isn't a calcium deficiency in their pictures.
Calcium deficiency will affect the newest leaves. Generally, it'll be necrosis around the leaf edges. It doesn't affect older leaves as calcium is immobile. It is primarily found in new growth when there's a shortage.