Strange Deficency - What is it?

DraculaReactor said:

Remember: deficiencies would start from the vain and move outward, if it were a deficiency, you'd see lighter growth coming from the center out. A toxicity is identified by affected tips and margins. Your tips are just beginning to burn, and a very dark green is almost always an indication of too much nitrogen. I'm 100% sure it's nitrogen toxicity.

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it's not a nitrogen issue man.
no way that's a nitrogen problem

Whatever, I doubt you grow better pot than me. I'm going to have to argue to my own authority here, that's a nitrogen toxicity and you should bump down your light cycle to 18/6. Also, don't use advance nutrients, their NPK ratios are not consistent as with any bottled nutrient solution. You making a leap of faith by just checking your ppm and pH, that doesn't indicate what is comprising that ppm. I see a lot of shitty grows that result from the old "add more calmag" panacea. Consider switching to a dry fertilizer like Jack's Professional Hydroponic.

90% of this site grow absolute garbage and I wouldn't hire them to mow my lawn. Check my grow journal if you think I'm a rookie, very few people on earth grow danker shit than I, to risk sounding modest.

While I agree calmag is no panacea(nor are epsom salts) and bottled nutes are overpriced, it's still not N.

Maybe you do grow the dankest shit.

Still not N.

Note: This thread is to diagnose a plant issue, not a donkey dick growing contest.

It's N dawg, I've been doing this shit professionally for a very long time and have seen just about all there is to see. I would trust the guy that grows danker shit, I put my money where my mouth is. What strain are you working with here? Sometimes there are genetic reasons for leaves doing that, like TGA's mad scientist and mad scientist crosses all just do a funky leaf thing even when they're perfectly healthy. That's why it's the mad scientist, the leaves all turn up into crooked fingers.

I've grown hundreds of strains from seed, if you give me some history of your girl, I could make a much more informed diagnosis.

I just watered using 1 gallon of tap water and Sensi Cal/Mag coco formula (half the recommended dose). Ph'ed the water/cal/mag to 6.5. We will see what happens. Let me know your thoughts

The bad part is at the top of the plant.

SStevens said:

I just watered using 1 gallon of tap water and Sensi Cal/Mag coco formula (half the recommended dose). Ph'ed the water/cal/mag to 6.5. We will see what happens. Let me know your thoughts

The bad part is at the top of the plant.

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Wait up to a week and see if damage stops.

Or listen to the dankest growin' mofo on da planut, wit yella vains on da inside dawg. Nitryo.

PotatoBug said:

Yea, Mag def, your plant is probably starting to lockout, don't know what medium you are growing in, but if adding some mag doesn't work, try a flush?

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How do you know when a plant is "locking" out?

DraculaReactor said:

The vain is very dark, meaning that the toxicity is just setting in. If you are concerned about magnesium, add 1 gram of epsom salt per gallon of water to your next feeding. If the situation doesn't improve, I would have to think you have a nitrogen problem.

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I'm relatively new to this but that was my first instinct too, but after looking around It kind of looks like Mag, but the middle of those leaves is definitely starting to look dark green and leathery.(N Tox)

What do you use for nutes? I don't have bottled im mixing my own, using Seaweed, Some Silicon 0-0-3(growtek), Cal/Mag, and Ammonium Sulfate

sorry about your problems: I just want to say, I love how the lights give you so much room.

DraculaReactor said:

That isn't a deficiency, you are giving your plant too much nitrogen. Look up nitrogen toxicity, I'd ease up a little on your ppm. Should come right out of it in a few days.

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Could you please help a first time grower out, man?

https://www.rollitup.org/t/3rd-week-into-flower-bottom-leaves-spotting-turning-yellow-and-fall-off-when-i-barley-touch-them.911544/

I can't seem to figure this out. It's honestly kinda been around in all my starting plants but it was only ever a couple leaves. Now it seems to be getting worse and I really would like a good harvest on my first grow.

Magnesium problems will first tend to show on the leaves more exposed to light as magnesium is heavily consumed during rapid photosynthesis. Nitrogen problems typically start lower on the plant as the plant is pulling nitrogen to fuel the new growth farther up the plant. Damage on the tips or margins alone is not an effective way to diagnose a toxicity or deficiency, as an example a potassium deficiency will typically show damage at the leaf tips(which some would call tip burning) first and proceed down the margins of the leaves. One has to look at the whole plant, where exactly the damage is and how it's progressing.

DraculaReactor said:

Remember: deficiencies would start from the vain and move outward, if it were a deficiency, you'd see lighter growth coming from the center out. A toxicity is identified by affected tips and margins. Your tips are just beginning to burn, and a very dark green is almost always an indication of too much nitrogen. I'm 100% sure it's nitrogen toxicity.

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That's just one example with why this post is totally wrong.

Resinhound said:

Magnesium problems will first tend to show on the leaves more exposed to light as magnesium is heavily consumed during rapid photosynthesis. Nitrogen problems typically start lower on the plant as the plant is pulling nitrogen to fuel the new growth farther up the plant. Damage on the tips or margins alone is not an effective way to diagnose a toxicity or deficiency, as an example a potassium deficiency will typically show damage at the leaf tips(which some would call tip burning) first and proceed down the margins of the leaves. One has to look at the whole plant, where exactly the damage is and how it's progressing.



That's just one example with why this post is totally wrong.

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What are your thoughts then?

If you are using a proper formula for coco, I would first try raising pH to 6.2 for a couple feeds to see if it's just an absorption problem. Be very careful adding any extra k in coco it can exacerbate these problems.

TrimothyLeary said:

Every nutrient uptake chart I've ever seen shows a decline in Mg uptake at right about 5.8pH, for hydro. Like, it literally dips way down between 5.6 and 6.0.

I suggest pH, as this is the most common source of Mg deficiency symptoms. The grower is using tap water, which is usually sufficient in Mg and Ca during vegetative growth. The nutrients contain each as well. There shouldn't be a deficiency at this point.

If they were in flower, it might be a different story.

But that's as far as I'll argue it.

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If thats the case, why does aquaponics work? My pH is 6.8-7.2

DraculaReactor said:

It's N dawg, I've been doing this shit professionally for a very long time and have seen just about all there is to see. I would trust the guy that grows danker shit, I put my money where my mouth is. What strain are you working with here? Sometimes there are genetic reasons for leaves doing that, like TGA's mad scientist and mad scientist crosses all just do a funky leaf thing even when they're perfectly healthy. That's why it's the mad scientist, the leaves all turn up into crooked fingers.

I've grown hundreds of strains from seed, if you give me some history of your girl, I could make a much more informed diagnosis.

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For the life of me I don't understand why people don't just test.
Do premixes not use NO3? Dyes in the nutrients might make the offsets I little greater.
0-160ppms range. To test higher, cut the sample with RO water and do some math to get the results.

Dumme said:

If thats the case, why does aquaponics work? My pH is 6.8-7.2

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Because aquaponics isn't hydro.

TrimothyLeary said:

Because aquaponics isn't hydro.

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I disagree. The definition of hydroponics is to grow without soil. I don't use soil

hy·dro·pon·ics
ˌhīdrəˈpäniks/
noun
noun: hydroponics

1. the process of growing plants in sand, gravel, or liquid, with added nutrients but without soil.

The only difference in the two that i can see would be the chelation process of the additives used. Some respond to higher or lower pH.

Woyaboy said:

Could you please help a first time grower out, man?

https://www.rollitup.org/t/3rd-week-into-flower-bottom-leaves-spotting-turning-yellow-and-fall-off-when-i-barley-touch-them.911544/

I can't seem to figure this out. It's honestly kinda been around in all my starting plants but it was only ever a couple leaves. Now it seems to be getting worse and I really would like a good harvest on my first grow.

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Don't listen to this guy. He has no idea what he is talking about. He actually had the nerve to say he grows better than 90% of the people on here.

Dumme said:

I disagree. The definition of hydroponics is to grow without soil. I don't use soil

hy·dro·pon·ics
ˌhīdrəˈpäniks/
noun
noun: hydroponics

1. the process of growing plants in sand, gravel, or liquid, with added nutrients but without soil.

The only difference in the two that i can see would be the chelation process of the additives used. Some respond to higher or lower pH.

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I disagree with that definition. To me hydroponics is feeding a plant nutrients when you water. Fertigating.

In auqaponics, at least in the tank, you've got full on biological processes occurring. That part, isn't hydro. Up top, yeah sure.

Anyway, you've got more going on than simply feeding the plant directly, which is my definition of hydro.

Anyway, there's lots of variables. And plants are awesome and can survive and thrive in unusual places with seemingly less than optimal conditions.

So I guess the real answer is, I don't exactly know. But I do know aquaponics isn't straight hydro, and so the rules are likely to be different.

TrimothyLeary said:

I disagree with that definition. To me hydroponics is feeding a plant nutrients when you water. Fertigating.

In auqaponics, at least in the tank, you've got full on biological processes occurring. That part, isn't hydro. Up top, yeah sure.

Anyway, you've got more going on than simply feeding the plant directly, which is my definition of hydro.

Anyway, there's lots of variables. And plants are awesome and can survive and thrive in unusual places with seemingly less than optimal conditions.

So I guess the real answer is, I don't exactly know. But I do know aquaponics isn't straight hydro, and so the rules are likely to be different.

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fertigate
/ˈfɜːtɪˌɡeɪt/
verb -ates, -ating, -ated
1.
to fertilize and irrigate at the same time, byadding fertilizers to the water supply.

Seems an awful lot like my aquaponic system as well; respectively understanding that the microbial growth is much different in Aquaponics.

Not trying to give you a hardtime or anything. Just looking of the definitions online.