day 16 flower, nitrogen "claw"?

gainsevillegreen:

Would having weak nutrients levels cause the leaves to do what they are doing?

The reason why I have adjusted it so low, Is that when I would do my daily PPM check, it would rise, not lower.

Whats causing the leaves to do this?!

I'll definately try to increase the nutrient levels a bit- and start using the bloom nutrients anyway.

I thought RO was a good thing to use in hydroponic system, as long as you use cal-mag, which i have, are you sure using tap water is better than RO+cal-mag? What about the chlorine and chloramine?


This is really confusing
50% of the people who help me say "Not enough nutrients"
the other 50% say "Too much nitrogen, Flush with no nutrients"

Which is it? Both? Flush- THEN increase nutrients? Or just increase nutrients? Or just back of the N and start using bloom nutes?

What is causing the CURLING OF THE LEAVES?!?!?!?

I'm losing my mind omfg sorry

I'm going to go with switch to bloom nutes NOW.
You are showing N toxicity even at that outrageously low EC. That seems very odd. Have you used any superthrive or thrivealive in the past couple weeks? What is the medium that the plants are physically planted in?
And the temperatures you noted- is that in the canopy or just at some location in the room?
Your res temp seems okay. What are you using to AERATE the reservoir?
Those look like tropical sativas. What is their origin?

Quote:

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Originally Posted by stinkyattic

I'm going to go with switch to bloom nutes NOW.
You are showing N toxicity even at that outrageously low EC. That seems very odd. Have you used any superthrive or thrivealive in the past couple weeks? What is the medium that the plants are physically planted in?
And the temperatures you noted- is that in the canopy or just at some location in the room?
Your res temp seems okay. What are you using to AERATE the reservoir?
Those look like tropical sativas. What is their origin?

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Roger that, switching to bloom nutes ASAP
I have indeed used superthrive maybe 2-3 weeks ago, but only half dosage (10 drops to 20 gallons or so)

They are in 8" net pots filled with hydroton, the rockwool cube they were sprouted in has busted and is no longer there, 5 gallon buckets with airstone discs

The temperature is the ambient temperature of the room, I don't know what the temperature of the top of the canopy is, but it doesn't burn my hand when i leave it there for a few moments.

Each bucket has a designated airpump, AND the reservoir to recirculate them has two airpumps in it with airtubes and stones


They do look pretty tropical, eh? These are bagseeds from probably the worst quality product you could ever imagine. The seeds came out of a 10 gram CUBE. (cut the cube right out of a brick im guessing). can you say SCHWAG?


Whats causing the N toxicity? The beginning of their flowering?
Should i flush for 24 hours, then switch to the bloom nutes? or just add right now?
The ppm is at 360, entirely Cal-mag+

I am starting to think that you have a light feeder there, like a tropical that is perfectly happy in poor sandy soil without much of a food source. I'd raise the lights a couple inches anyway- a few moments isn't QUITE enough to gauge heat and high temps in a time of stress aren't all that great. Once you see that new growth is healthy, drop them a bit closer.
It's good you are flowering them immediately, because tropicals get HUGE and will likely triple in size. In soil, potbound plants show that leaf shape but in DWC I don't know how it goes.
There's one last thing that frequently causes the leaves to look like that... not nearly enough air circulation, or suffocation from overapplication of an oily or waxy foliar spray.
So this is your project:
Bloom ferts, starting at the ppm you are running now and then gradually increasing until you see the start of tipburn, then backing off.
LOTS of air movement- you need a strong exhaust and unobstructed intake. Big plants need to BREEEEEATHE!
Check that the roots have enough space- you might have to look around the internet for this.

I hope this doesn't insult everyone else that was helping me-- but;

I think I love you. :lovestruck:


Alright, Ima start on this right now. First thing, raise the light and get some fans. I'll pretend these are growing in Jamaica now :)
Then I'll have to make a trip to the grocery store for RO water, since it takes over a week to fill up 20 gallons at my house, and then get them their bloom nutes

Thank you for laying it out for me :)!!!!!!
I feel like maybe it's back on track now....

Aww, hugs all around. Don't forget to add your calmag if you are running RO water! Otherwise we will have to scold you! :D