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[LordShaper]

Hi GWE forums help thread heros!

Problem: Two of my plants have leaves that are damaged. I have tried to locate a deficiency that fits the look of it but cannot conclusively say what it is.

Genetics: 9lb. Hammer Feminized by Growers Choice (Bigger plant)+ One unknown bag seed (smaller plant)

Soil: They were planted in Bar Harbor Blend Organic & Natural Potting Soil. When they got big enough I transplanted into 3 gallon fabric pots with Fox Farms Ocean Forest. Each transplant was done with a sprinkle of Great White Mycorrhizae. Planted in 3 gallon fabric pots.

Equipment: 48" x 48" x 80" Vivosun Tent, Spiderfarmer SF4000 18 inches above canopy set at 75%, AC infinity 6inch inline, 2 oscillating fans.

The Nutes: I have the Fox Fam Trio plus I picked up Microbe Brew and Bushdoctor Sledgehammer. Of that I have only used the Big Bloom, Microbe Brew, and 2 feedings of 2mL/Gallon Grow Big. Tips started crisping so I stopped on the Grow Big. I adjust pH of the water with General Hyrdoponics pH+ and pH-. I have Superthrive for emergency use, Fish Shit that I put in every watering, Unsulphured Blackstrap Molasses which I have started adding every other watering at 1 tbsp/Gallon, and GH CaliMagic as my CalMag.

Water: I water when I can pick the whole pot up and it is very light compared to the size of the plants and I cannot feel moisture on the fabric pots. After I add nutrients I pH water to 6.5. I check run-off and its usually 6.4 to 6.7. When I water I add until just before the water will overflow the dirt and cascade down the air-pruned dirt on the inside of the fabric pot. I am looking for run-off that has flowed through the main root mass. When I see it I stop.

What do I think it could be?: Based off of what I can see in the plant diagnoses section of GWE I am leaning towards either a Calcium deficiency or I am overwatering it. This isnt my first grow so I dont believe its over watering.

If you have seen this, please reach out! I am new to this community and would like to learn from you all.

[Satyaban]

I don't know much but I would lower your lights to no more than 18", also, as they get bigger they will drink up more water so, don't let them run dry. One last thing, I don't know what your plans are but I think 7 plants are too many for a 36X36 tent, My tent is 4X4 I gave one plant away, I should have sold it 7 weeks old but I didn't, to reduce my count to 5 I am moving one around my backyard following the Sun. I could grow 6 but I would have to give up on keeping them a part completely, even with netting. In my 1st time grower's opinion the amount of greenery is more important than the size of the pot. I use 5gal. bags because I want the roots yo have ample room. I think Puglover1 is right about about runoff as well.

[Obsvr]

thanks! They got their first full watering and they responded as well as could be. I'm seeing solid new growth with very healthy leaves. I think by the end of week 3 they'll be ready to top.

[Puglover1]

Maybe shoot for 6.5 pH? Good luck on your grow! Take good care of those ladies. They might be ready to water to the edges to encourage the roots to grow out and down. Damp, not flooded or runoff just consistently damp so you get a feel for the weight.

[Obsvr]

Hi All

just getting into my first grow and have a small issue I hope you might be able to advise me on. I'm seeing some brown spots on my leaves, but only on a few of the plants. Quick rundown on what i'm working with:

9 auto's in 3 gallon canvas
3x3x6 tent
sun systems 315 LEC
mother earth coco mix
Gen Hydro Fora, Bloom and Grow + calimag

Today is the last day of week 2 and the light has been 24" away from the plants for the last week when I moved them from rapid rooters to their current homes. After reading the tutorials I was worried about over watering and may have under watered them a bit this week. They were given water when the medium felt dry, however I might have gone a bit light in how much I gave them. I've been giving them 1/4 noots + calmag with each watering.

The spots also seem to be where water droplets came to rest after watering. I've been checking and adjusting the PH to 5.5 - 6.5.

Not every plant has it and there isnt a clear pattern inside the tent. The back two rows contain the four plants that seem to be having the issues.

thanks in advance for the help!

***EDIT***

After doing more research it looks like its probably a cal deficiency. I also realized while making this solution that i've completely botched my PH. I had not been stirring after correcting, which means i've been using insanely low PH water (like a strong 4). Tomorrow is their first day where they will get vegetative state watering, so hopefully its onward and upward from here.

[Satyaban]

3Berries I did the same. After a day or two the thought came to me that I should have added water to the 5 gal in prep for the transplant. Because I used hot soil I water a 4 cups at a time until I see run off every three days.
They are really exploding in their 6th week, 2 inches or so a day, I think the roots are reaching the richest soil at the right time. The only way to confirm this would be to replant in a 7 gal pot. If I am wrong headed about this I hope someone will tell me, like, "No, Saty that is the way GSC autos grow."

[3Berries]

The problem with big pots and little plants is watering. My last transplant I did not thoroughly water the new soil for a couple of weeks. Just added a quart right at the plant when transplanting, again the next day just a bit then finally a half gallon yesterday.

[Satyaban]

I germinated my autos in plugs and placed the plugs in the convenient trays, I did it that way thinking I could better control water and humidity. A couple of days after germination I placed them in 5 gal pots. I don't think the plants had any awareness of what size pot they were in and think the only difference was in my head. I had success 7 out of 7 seeds. However if a grower plans on handling the seedlings a lot, moving them from table to tent and such smaller pots makes it easier. In the long run I think the more room for root growth the better but I am new at indoor gardening.

[BU2B]

Hazyn740 both comments by BeeGinner and Puglover1 are pointing you in the right direction. Burnt leaf tips on young plants can indeed be a sign of nutrient burn, but yellowing leaves and leaf tips can also be caused by overwatering and light burn. Whether you transfer your plants or start them in a smaller starting pot is completely up to you. Some like a fuller rootball before putting their plants in their forever home. What’s really important for young plants is less nutrients and drainage. Over time you may find some strains will do better starting in larger pots and some may not. In the end; you know your plants best and will always have to temper advice with personal knowledge.

Good on you for doing your best and for having just a few of GWE’s many concerned and helpful members pulling for you!

[Puglover1]

What's the pH?

BeeGinner He did do solo cups with first not enough soil in them. I only had one auto grow, it was horrid, most growers don't transplant autos, seed to final pot.

[Gingerbeard]

What is your medium?

[Hazyn740]

n
Now my NL leaf tips are dieing any answers?? Lights are at 18" from plants

[Puglover1]

I wouldn't lower your lighting. Autoflowers aren't supposed to be light sensitive like that. I ran both lights most of the time.

[Hazyn740]

Now my GG auto is startin to grow flower hairs and its only like 2 inches tall sprout basically,// the northern lights is about 4inches ive transplanted. All but the one BCN sprout. Is it cause i had them on veg lighting for so long that when i tried to just up the lighting by adding bloom setting l.e.d's too that the plant took that as a signal to flower? cause those spectrums were added to its regular dose of just veg setting lights that are more blue? I turned the bloom setting off so hopefully the plants change their minds and grow bigger first then ill turn bloom back on

[Puglover1]

I'd transplant stat and fill the container full. NL seems to want more calcium or cal-mag according to most NL auto growers I've seen post. I had a ridiculously small NL auto, it started flowering at 3 weeks.