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What is your biggest question about growing cannabis?

Hi folks,

I can give all the specs if needed but for the moment my biggest question is “has anybody encountered seedlings with yellow veins (see pic) and basically no growth. If so what was the cause(s)?”
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I have this disability called "essential tremor", maybe one of you all have it as well, the thing is it is hard for me to taken clear pictures when I hold a device to do it. My problem is ph, or whether to trust the testers I have. For starters I know that my tap water is pretty balanced because I had tropical fish and tested my water on a regular so historically our water here is very good. I have 2 of those stick in the soil meters and they don't really react when stuck in the pots, and they don't react when stuck in hot soil. When I say not reacting I mean the needle stays on the acidic end or as in not moving. Am I wrong in assuming the soil I used is balanced? If the FFOF and super soil are balanced shouldn't my tests say so. I don't have any faith in those testers, I have 2 that are the same, and the moist test is OK, but I don't like the light test too tough, I had to almost touch the 120w "full spectrum" led to bury the meter. If my plants are looking good maybe I am stressing myself over nothing. Its hard when there is little to do by water and get a trellis ready.
My plants 6 GSC and 1 mystery seed are at 4 wks on Friday.
 
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Those stick in the dirt combo meters are junk. Good for the moisture and light maybe.

I've found FFOF to be quite hot. I'm using some now and it locked out my K & N. Using wood ash to combat the issue.

I have an Apera pH meter and water to run off to get a good enough sample to test pH when I want to see what's up. I also test the ppm of the run off.
 
I've got some FFOF and next time I use it I'll cut it at least 33% with perlite and add generous amounts of limestone. Happy Frog would be half that.
 
12 hr light period. I wonder how a plant would react to 1 hr on 1 hr off over 24 hrs for the flowering period?

I use a 50 w LED as a heat booster. It cycles at 82F. But the part of the plant closest to it always seems to do better. Maybe it's just the added light?
 
I have my doubts about that one. I think the plants need time to switch chlorophyll production on and off. I would liken it to sleep.
 
There is a veg cycle called 12/1. It is 12 hours light, 5.5 hours dark, 1 hour light, 5.5 hours dark, repeat. This keeps them in veg, while saving on electric cost. I believe it was developed to confuse LEO when looking at power usage. If this keeps them in veg I think 1 on and 1 off would do the same. They need 12 continuous hours of dark to switch to bloom. If they were already in bloom, re-veg.
 
Hi all, im growing a single Grand Daddy Purple which is just about a pure Indica, its in its 4th. week of veg. Its a very bushy plant, I was wondering when I should switch over to the 12/12 flower cycle. I still want to weave the branches in and out of the.scrog net which I haven’t done yet, can do this after switching to 12/12, or keep it in the veg. state while spreading out the branches in the scrog net. Thanks.
 
I just switched two 8 w GDPs to 12/12 and the stretch in the first week is quite a bit. Defoliated them quite a bit too as they were really bushy. I fimmed them both early on so they are pretty gangly now and would be easy to manipulate. I made sure they have plenty Ca and N going into flower but then back off completely.
 
This is a little late chiming in but Big Foot Gold contains several beneficial microbial strains on top of endomycorrhizae. When it comes to fungus though I generally worry about establishment early on as the mycorrhizae should flourish alongside the root system naturally so long as conditions are correct. You could always brew your tea and add in a fungal inoculant to the dilution immediately before use as well.
 
stonedassassin1319 said:
how can i deal with temperature with a 150w HPS grow light (without cool tube)????? i have no way of keeping my 2x2x6 tent cool. every time i leave that light on and come back to check on my plants the temp is at low 90’s i fee like my babies are getting burnt up. i’ve put a bandana, right under the bulb not too close so it looks kinda like a hammock but with the 4 corners individually stuck to each corner of the metal part of the lamp with magnets, as a shade. it kind of helps with temp but now my girls don’t have direct light hitting their leaves. i have a portable AC but it’s expensive to keep running since it’s a 8,000 BTU ac. i got 2 plants growing one is like 12 inches tall i didn’t mainline it cuz i didn’t know what that was til now and the other is 5 inches tall. the stem is still weak right now and idk when to main line that one . both plants are kinda dropping due to wind burn (YOU CAN STOP READING NOW THE REST IS JUST ME BLABBING)
the supplies i have:
  • 2x2x6 grow tent
  • cloth pots (just transplanted my 12”)
  • nutrients (big bloom, grow big, forgot the other one)
  • in-line fan, 1 ducting, carbon filter, and 8” fan
  • 150w HPS light , a 45w LED blue and red lights
…i think where i have my tent its not really at a good spot . it’s in my bedroom and nobody is really in there and not much air circulation. my girl and kids sleep with the ac on so it gets cold in there over night only for awhile since i’m nocturnal i control the temperature in there but there’s those times where i sleep at night for like 5 hours wake up at like 1 am. i talked about moving the tent to the dining room area where there a window and the temperature is perfect and i can maintain everything but she trips when she was the one that impulsively bought me a clone for my birthday. so it’s only right to grow the clone the best way possible so it doesn’t die. so
Click to expand...


update on my first . i think i accidentally mainlined her without knowing what mainlining was
 

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Hi Nebula, I defoliated a few times and including at 4 weeks into flower, should I defoliate more? Thanks.
 

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