Nitrogen toxicity?

ThatOneDudeWhoNeedsHelp said:

Oh, yes they do tell you to just give all the nutes from the start. But i've not done so, i've always given grow & micro until i start seeing some hairs. That's when i've started giving bloom.

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BongerChonger said:

Then, I would suggest you follow the manufacturers recommendations for it's stage of flower next-time you give nutrient.
I'd say it's what it is.

Important you keep to the recommended ratios of grow - bloom - micro.
EC can be less than recommended, but it's important you use the nutrient as intended.

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ThatOneDudeWhoNeedsHelp said:

You think i should INCREASE nutrients? Aren't the clawed leaf tips (and entire leaves) a telltale sign of nitrogen toxicity?
There aren't really any other signs of nutrient deficiencies, as of yet at least.

Maybe i'll go crazy and do BOTH? Give one double nutrients and the other 0? That way i could 100% figure it out at least. But it also might end up with me sacrificing the other plant in doing so.

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ThatOneDudeWhoNeedsHelp said:

Thanks for all the tips guys! I'll give them water only for a week or so and see what happens. Then slowly start going up with the nutes again if the leaves recover.

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ThatOneDudeWhoNeedsHelp said:

You think i should INCREASE nutrients? Aren't the clawed leaf tips (and entire leaves) a telltale sign of nitrogen toxicity?

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ThatOneDudeWhoNeedsHelp said:

Double being the recommended amount, obviously.

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BongerChonger said:

I think this ^ is way to go @ThatOneDudeWhoNeedsHelp

Important to remember it's about balance.
Easy to surmise a nitrogen toxicity if neglecting PK.

I think it's good to be sensible this stage. I'd start at half recommended EC myself. Get good runoff.

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ThatOneDudeWhoNeedsHelp said:

Right, water only for a week. If symptoms get worse during -> should then be easy to determine it's deficiency instead of toxicity -> Give more nutes than before. This would seem like the least risky plan for me too actually.

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BongerChonger said:

I'd just give 1 good watering next-time it needs it. Then nutrients the following watering.

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calvin.m16 said:

Overwater, Underwater or simply genetics. If your in coco or peat you should feed any time the pots look/feel almost dry and water until you have some runoff, do not let plants stand in the runoff, wet vac it up or drain it away somewhere or you'll get toxicity/nutrient imbalance.

What's your rooms humidity like? mid 80s is pushing it in flower unless you have humidity to match it. I'd look into VPD (Vapor Pressure Deficit)

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