Hello, New here I am from I 
growing Marijuana.
I have small issues. Looking to start a new forum here.
I have a 2x2 for cloning and 4x4 for veg powered with tsl2000. 2 600w hps bulbs flower room.
Water purifier into res and sits till use with bubbles.
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Hello @PotSmoke - and welcome to overgrow!
So is the issue you mentioned but don’t describe the apparent yellowing of that fan leaf? If so, it looks like textbook Nitrogen deficiency.
BTW - here’s a chart you might find helpful:
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Looks like your growing in soil. What type? Sounds like you use ro water? What nutes do you add and how often? I also love that chart purple put up.
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If you were to fill this out, it might help others, help you, in my humble opinion 
COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)
- What strain, Seed bank, or bag seed
- Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
- Vessels: Pots, Grow beds, Buckets, Troths
- PH of Water, Solution, runoff (if Applicable)
- PPM/TDS or EC of nutrient solution if applicable
- Indoor or Outdoor
- Light system
- Temps; Day, Night
- Humidity; Day, Night
- Ventilation system; Yes, No, Size
- AC, Humidifier, De-humidifier,
- Co2; Yes, No
Always try to upload a clear picture of any issues you may have to allow the community to assist you.
Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us help you in a more efficient manner
Thanks!
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A few things to note. Understanding what is deficient and understand why it’s deficient are two different things. It may be the case that you’re missing/underfeeding something. It may also be the case the the plant is not uptaking the nutrients that are provided.
Usually this is a result of something non-nutrient related, such as overwatering or incorrect pH.
For identifying the specific nutrient that is deficient, in addition to seeing the leaf itself, it’s helpful to know where on the plant it came from. Immobile nutrients tend to cause issues in new growth, while mobile nutrients tend to cause issues in old growth.
What you have is interveinal chlorosis, meaning yellowing between the leaf veins. Often, I would start thinking of magnesium in that case.
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Welcome @PotSmoke
I’m glad you made the trip over. I’m set to watching your grow.
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Lefthandseeds knows what he’s talking about and has offered you up solid advice…
Not all elements are mobile either, only the ones that are can the plant steal it from other parts of the plants to get what it needs to upper new growth… N is a more solid yellowing of very bottom leaf 1st, and entire leaf, not just da ribs so to speak…
Being your using RO water, calmag needs to be a permanent part of your feeding regiment
even if you run other nutes at 1/4 str, run it full…
they look healthy n happy for the most part, so don’t over react and don’t try to feed just the MG needed, add a boost of it next feeding and so on until you see gradual resullts, nothing to panic about for sure ok… luck
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Welcome to OG @PotSmoke. I’d say your in good 
with OG.
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excellent post, every one looks up the def then cant figure out why when they add a ton of whatever its still in def. ph is almost always my deal, but i dont totally understand as there are people here that dont ph at all and there pics look great.
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Continuing the discussion from [Growing]
Thanks you for responding I am trying to produce big buds on 1200 watts of hps. What is a good 3 or more part series reasonably price I am currently using flora series bloom,grow,micro it has working just some issuse I have soled some with calimagic I have a I line water filter.
5 foot tall around 8 plants
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Nicely said lefthandseeds.
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I don’t know how true it is but I heard on another forum that if your water has low ppms, ~100 or lower, it will assume pH of medium rather than alter it. My water consistently tested at 78-84 ppm before I trashed the meter. I’m operating under the assumption that the above is accurate and why I get away with it.
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Bud sites are looking good about 2 half weeks in flower usesing only florabloom, what bloombooster should I use for these girls?
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Is is possible to take some pictures under normal lights? It would really aid someone in possibly spotting something going on with the girls?
Just wondering.
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Yes I will half to turn the ballast down. What bulb should I be using a buddy says to use this bud which is like warm white and the other bulb MH which should I use the MH bulb is not as bright. But they are growing good
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You could do a lights out flash picture. That would show the true colors.
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