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Help! Northern Light auto flower First Grow

I just started adding Nutes today and half strength and it is the end of the 4th week. I see some pistols coming out on both plants. I trimmed a couple of the really bad leaves off the one that's rough. Its not on all the leaves, but maybe a quarter of them this is what I am seeing. Wanted to be able to take a good picture. Again the other plant looks fine. Could it be this one shot up so much faster it was wanting/needing more nutes? I take this as a positive thing that I have two plants not doing the same thing. This first grow I am just trying to learn as much as I can from the community.
 

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If it's starting to flower it will definitely be using the nutrition in the soil. There's not a lot of p or k in ocean forest they need some bloom food.
 
Day 28 and 2nd feeding of the Fox Farm nute trio and they are responding well. I went at half the recommended dose and they appear to be doing alright so I may keep that dosage unless I see I see some issues. The problems I had with the one appear to not be in the new growth so hopefully it worked itself out. I took the humidifier out and I am sitting at 45-50%. Looks like uping the PH to 6.5 and giving some nutes helped out tremenously.
 

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I would keep the nute level as it is, honestly I do same with the ff nite trio and also keep feed at around 6.5 nd they too are thriving and in week four of flower. Keep it up, they doing well.
 
Thanks. So far no deficiencies, but she is starting to explode and flower now so I worry. I plan on keeping it the same unless I see anything that concerns me.
 
Can someone tell me what they think these brown spots are. Only thing I can think of is calcium deficiency to many nutes. I am into week 7 and week 2 or 3 of flower. I been feeding the Fox Farm trio and didn’t start until the end of week 4 once I saw pistols. I also added CALMAG at beginning of week 6. Now I have brown spots popping up in the older/larger leaves halfway up the plant. The spots seem to be more along the veins of the leaves. I did notice very light-yellow tips on some leaves which would indicate nute burn. At this point I don’t know if I need to add more CALMAG or do just PH water in case I fed to much. This is my first grow. She is a little tall and skinny because temps were low to mid 80s a times during veg and light may have been a little far. You live you learn.
 

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I used nothing until end of week 4 and then I used all three. for 4 feedings/2 weeks. On the last feeding, I cut out the grow big. Is it because I used the Grow big and shouldn't have?
 
I know the FF had enough to get me through 4 weeks so I didnt use anything. Last feeding week for and into end of week 5 I used all three. Week 6 I cut out grow big and added some calmag. End of week 6 I noticed spots and now its week 7 and I just gave water.
 
Grow big leans toward more nitrogen and is more for veg state after switching I stop with grow big and focus on phosphorus potassium leaning nutes, which is more for bloom. Also I lower my ph to help deliver more iron and other minerals which seem to be better taken up at a ph of say 6.30 . There is something about those spots on Gwe site but I can’t load it on my phone right now.
 
[TABLE="border: 1, cellpadding: 3, cellspacing: 0"]
[TR]
[h=3]Table 1. The 14 elements essential for plant growth and their mobility and role within the plant.[/h] [/TR]
[TR]
Macronutrients Symbol Mobile in plant Role in plant [/TR]
[TR]
[TD="colspan: 4"] Primary[/TD]
[/TR]
[TR]
[TD] Nitrogen[/TD]
[TD]N[/TD]
[TD]Yes[/TD]
[TD]Formation of amino acids, vitamins and proteins; cell division[/TD]
[/TR]
[TR]
[TD] Phosphorous[/TD]
[TD]P[/TD]
[TD]Yes[/TD]
[TD]Energy storage and transfer; cell growth; root and seed formation and growth; winter hardiness; water use[/TD]
[/TR]
[TR]
[TD] Potassium[/TD]
[TD]K[/TD]
[TD]Yes[/TD]
[TD]Carbohydrate metabolism, breakdown and translocation; water efficiency; fruit formation; winter hardiness; disease resistance[/TD]
[/TR]
[TR]
[TD="colspan: 4"] Secondary[/TD]
[/TR]
[TR]
[TD] Calcium[/TD]
[TD]Ca[/TD]
[TD]No[/TD]
[TD]Cell division and formation; nitrogen metabolism; translocation; fruit set[/TD]
[/TR]
[TR]
[TD] Magnesium[/TD]
[TD]Mg[/TD]
[TD]Yes[/TD]
[TD]Chlorophyll production; phosphorus mobility; iron utilization; fruit maturation[/TD]
[/TR]
[TR]
[TD] Sulfur[/TD]
[TD]S[/TD]
[TD]No[/TD]
[TD]Amino acids formation; enzyme and vitamin development; seed production; chlorophyll formation[/TD]
[/TR]
[TR]
[TD="colspan: 4"]Micronutrients[/TD]
[/TR]
[TR]
[TD] Boron[/TD]
[TD]B[/TD]
[TD]No[/TD]
[TD]Pollen grain germination and tube growth; seed and cell wall formation; maturity promotion; sugar translocation[/TD]
[/TR]
[TR]
[TD] Chlorine[/TD]
[TD]Cl[/TD]
[TD]Yes[/TD]
[TD]Role not well understood[/TD]
[/TR]
[TR]
[TD] Copper[/TD]
[TD]Cu[/TD]
[TD]No[/TD]
[TD]Metabolic catalyst; functions in photosynthesis and reproduction; increases sugar; intensifies color; improves flavor[/TD]
[/TR]
[TR]
[TD] Iron[/TD]
[TD]Fe[/TD]
[TD]No[/TD]
[TD]Chlorophyll formation; oxygen carrier; cell division and growth[/TD]
[/TR]
[TR]
[TD] Manganese[/TD]
[TD]Mn[/TD]
[TD]No[/TD]
[TD]Involved in enzyme systems; aids chlorophyll synthesis; P and CA availability[/TD]
[/TR]
[TR]
[TD] Molybdenum[/TD]
[TD]Mo[/TD]
[TD]Yes[/TD]
[TD]Nitrate reductase formation; converts inorganic phosphates to organic[/TD]
[/TR]
[TR]
[TD] Nickel[/TD]
[TD]Ni[/TD]
[TD]Yes[/TD]
[TD]Nitrogen metabolism and fixation; disease tolerance[/TD]
[/TR]
[TR]
[TD] Zinc[/TD]
[TD]Zn[/TD]
[TD]No[/TD]
[TD]Hormone and enzyme systems; chlorophyll production; carbohydrate, starch and seed formation
[/TD]
[/TR]
[/TABLE]
 
I am stumped. I did add some bone meal a couple weeks ago. Probably pointless considering it takes a while to break down. Then week and half ago started adding CALMAG. Don't know it it could even be calcium. This also started with the two largest middle fan leaves and slowly is going to other leaves. Nothing at the top yet, mostly in the middle. I am stumped at the moment what to do. Starts off very small yellow and brown dots on veins. Most spots are on the veins.
 
What ph are you giving btw? Calcium and magnesium are better absorbed at a ph of closer to 7 than we like but a ph now and then of say 6.70 can be useful once in a while
 
I have been in the 6.2 to 6.5 range. Maybe I will bump it to 6.8 and give some more Calmag. I don't know if I should do a flush. Everything I read says Calcium, but I topped it with bone meal and gave calmag last 2 feedings. Maybe because PH was closer to 6 I don't know. I just need to get through the next 30 days or so. Then start flushing. Don't know how long these normally take. I am on day 47 from seed. I have heard 90 but could be a week or two before.
 
Yeh I feel your pain it’s hard to know what action exactly to take but I might flush once just to clear any nutes and then go back to light nute feeds, but when I flush I don’t do fu flush, more like a heavy run off, then give water and hydrogaurd which is not a nute, then go back to my nute regime for blooming. I’d guess we don’t need too much calcium but I remember that we do need a good balance between calcium and magnesuim as they need each other to be effective. Obviously the leaves effected won’t recover, but hopefully which course you take will stop the problem developing. As you say you May have another six or more weeks to go.
 
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