60 Plant Grow Setup

I checked the pictures again for what I though I saw, and I see some of you plants cupping on the edges. That is why I added possibility of some heat stress. I am sure that if this is a problem, that it is only one small piece of the puzzle. BTW, how have you been measuring your PH?

Hey T.
I'm pretty sure its not because of the 30 hours that the power was out, the plants only missed 14 hours not that big of a deal. I wouldn't recommend doing it over and over. Dam power outs...

What do the leaves feel like? are they soft, hard, brittle ect.

Try razing the lights.

You also can take one of the plants that look bad and flush it and test the run off water.
I would do both ph and ec/ppm

Hope some of this info helps.

Good luck bro

or whatever day it was you posted these pics (2 pages ago how my account displays)
but i have highlighted some possible areas of concern in 2 of the pictures. The areas of red circles have red tint to the leaf stems and not the stalks to the plant so this makes me believe that it is a prosperous deficiency instead of a genetic trait. also the areas with purple circles are leaf stems and stalks that only have green in them, but this is also NEW growth that has not yet shown the deficiency.....

this is all my opinion trenton. im experienced but im no pro like you with 60 @ one time lol.
id check your ph levels and experiment a little bit with those. take 6 plants and up the ph a little, take 6 more and up it a bit. see which ones show more improvement if any (prevents killing them all really quickly if you go the wrong way with it). I wouldent worry about the burnt leaves unless it continues farther up the plant @ a fast progressive rate, since you plan on eventually lollipopping them anyways and dont even really need the branches as clones (but could use them for profit if you could root and market them....).
i believe that the leaf curling and branch drooping could be due to overwatering and the light conditions.....just a guess though as i cant really picture others grow conditions and critique their methods unless i see them firsthand. oh and id raise the lights a little until you get through this crisis man. it cant hurt.

good luck trenton. I hope that this is all helpfull in some way to you

Is the new growth a nice green? Do you let your water sit out for a day or two before watering? Like Garden Knowm said ajust the ph as it can lock out nutes. I would recomend a moister meter that could be the whole problem of droopy droopers MOISTUREMETERMOISTUREMETERMOISTUREMETERMOISTUREMETERMOISTUREMETER..Jmac

jmac said:

Is the new growth a nice green? Do you let your water sit out for a day or two before watering? Like Garden Knowm said ajust the ph as it can lock out nutes. I would recomend a moister meter that could be the whole problem of droopy droopers MOISTUREMETERMOISTUREMETERMOISTUREMETERMOISTUREMETERMOISTUREMETER..Jmac

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new growth looks healthy as hell to me. old growth does too except for select spots of the brown and crinkleys...lol.
look at the pictures that I reposted with the purple circles. that shit is green as hell!

trenton said:

Again, Im currently vegging 18/6. With lights on temp is 74-78F and humidity is 35%-42% Lights off temp is between 55-65F Humidity at 60-73%

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Hey man - I am no pro but it sounds a little cold in there at dark time. I would get a space heater in there for the dark hours to help keep it a little warmer, especially when you go to 12/12 - that will be more hours of coldness. Also do you have your lights set on at night and off during the day? - that could help with the dark temps a little. Also if you can get some styrofoam or something similar and put it under those bins all your plants are in... to insulate it from the concrete floor some. I am sure your leaf spotting and yellowing are from a nute over/under prob but the temp should be addressed as well imo.. just my 2 cents - skilled growers please chime in if I am wrong - I don't want to spread any mis-info.

There's nothing wrong with the temps. The answer to this is easy. It is deficiency of 'P' or phosphorous. This is cause by a couple of things, the main one is PH, the second is undernute (get a ppm meter!), the last is iron toxicity.

Are you using an iron supplement? Where are you getting your water from?

ever try'd normal water ?

Cook up 30 litres in a big Saucepan...... then u give the plants the water u distilated ??

dont know if this would help, but a try would defently be well worth it ?

Just say this cuz i heard this guy talking bout this on tv yesterday ^^ i was like oh. ok cool ^^

Thanks for all you advice. I just got home and havnt checked on them because they are on there 6 hours lights off. I did by a oil filled radiator heater and place in the room today befor the lights went off. I also ran the temp gauge to the room outside of the grow room. The temp is 68F and the humidity is at 57%. I think the space heater is helping a lot. I will take all the advice into consideration and spend lots of time with the plants tomorrow. (or later today I should say). Thanks again

trenton said:

Thanks for all you advice. I just got home and havnt checked on them because they are on there 6 hours lights off. I did by a oil filled radiator heater and place in the room today befor the lights went off. I also ran the temp gauge to the room outside of the grow room. The temp is 68F and the humidity is at 57%. I think the space heater is helping a lot. I will take all the advice into consideration and spend lots of time with the plants tomorrow. (or later today I should say). Thanks again

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Cannabis MUST have a 10-20f drop in heat during the dark period. This is essential for photosynthesis the next day. Incorporating the heater is a good thing for your humidity if it was too high, but you will need to compensate for this and now get your plants used to a higher temp during the lights on period.

So if it's 68f during lights out. You want the temp to be 78f during the lights on.

This is an important process. Luckily cannabis can adapt very quickly, but there are still some basic rules that should be followed.

Wow... didn't know this either.

cannabis loves light but thrives better (grows bigger) in a cooler climate. So we aim to get a combination of both. Enough light so that cannabis believes it is in the tropics but enough ventilation so that it can grow nice and strong, healthily.

The 10f drop is normal and essential for the plant to go about its metabolic processes.

to my mind, any input of heat during lights out must be compensated for during lights on.

skunkushybrid said:

The 10f drop is normal and essential for the plant to go about its metabolic processes.

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but dont people grow sweet as with lights on 24/0 and they grow fine... so theres no real need for the dark period and the plant would benifit from more light?

during flower.

There should be no need to turn off your lights during veg'. Also my point is that his temps are fine. If he's in veg', he should veg' 24/0. Do you want a debate about this? lol

the temps are not cold enough to prevent the uptake of P. Also, aren't these 1000w lights. how is it too cold?

feeding once then feeding plain water may not be supplying the plants with adequate nutes, or even adequate levels. just maybe he's still being a little overcautious with the nutes. A ppm meter would solve the problem instantly, and give peace of mind to boot.

hah, all the time and money spent on everything, yea you might as well get a ppm meter.

Garden Knowm said:

Hi Trenton

-Lights off for 30 hours - no big deal, not the first time
-18-6 is the way to go.. Actually I would go 20-4
- my town had serious power issues yesterday when the storm came through... maybe we are neighbors?

cheers

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looks like we have a debate gk says give it dark time skunkush says 24/0 what will be the aftermath tune in to find out

I just took some pics of my droopy ass plants. I havnt watered them in 2 days. Im just waiting it out a little bit and doing more research.

Ok... not the 24/0-whatever else debate again please...

There's a definite 'P' deficiency.

For this to happen in a seed plant from veg' there are 4 options.

1. Ph
2. Undernute
3. Iron toxicity
4. Too low temps.


IMO, the temps are NOT too low. Certainly not low enough to prevent the plant from uptaking 'P'.

I've noticed the fans on the walls are quite high and far away, are they strong enough to keep all the plants moving?

Also, I don't see any fans blowing through the stems? The air needs to circulate between the plant's lower branches, especially since they're quite close together. I keep an oscillating fan at floor level, about 6" from my plants.

Are you taking temps from the centre of each group of plants? it could get very warm in there if the air isn't circulating properly.


Apart from the drooping, they look great. I'm sure you'll get them fit again soon and reap a fine harvest!