Deficiency, lockout? (day 19, soil)

[ATX57]

No. Only change is the monsoon season is over which dropped the humidity from 80+ to around 20-30%.
The plant showed the symptoms in the Coast of Maine starter soil & has continued after transplant 7 days ago. I’m going to wait before making any changes & creating a bigger problem.
I don’t want to jack your thread. I’ll be watching your progress with big time interest.

It’s cool, we’re working on the same issue. I used the CoM seed starter soil too. A tiny plug of it to germinate the seed in and about a solo cup size mix of 50/50 Stonington and the starter soil around it, all in the center of the 3 gallon bag. I’m kinda wondering about that starter soil now, but it was fine for your last grow.

 

[MotaZona]

It’s cool, we’re working on the same issue. I used the CoM seed starter soil too. A tiny plug of it to germinate the seed in and about a solo cup size mix of 50/50 Stonington and the starter soil around it, all in the center of the 3 gallon bag. I’m wondering about that starter soil now.

I used the CoM starter soil on my 1st grow & it worked fine. Also, on my 1st grow, I didn’t transplant until week 2 & everything was great.
Maybe this Glue Sniffer is a little more finicky(?).

 

[MotaZona]

@ATX57, are your plants still actively growing?

 

[ATX57]

@ATX57, are your plants still actively growing?

Yep, they’re growing well. The 3BOG possibly a little slower recently. So maybe like your Glue Sniffer it‘s more sensitive to stuff.

 

[SensiKeeper]

Yo… Loving the collab. Cheers!!

 

[Mañ'O'Green]

Problem: Leaf discoloration, yellowing between veins. Both plants but much more in the indica dominant 3BOG

Medium: Coast of Maine Stonington Blend (added 10% extra perlite) in 3 gal fabric pots.

Feed: CalMag plus iron with watering, 3 days ago. Stonington blend dry plant food, top dressed 1/8 cup about 5 days ago

Water: ZeroWater filtered tap water, add a bit of straight tap to about 80 TDS, 6.3 pH.
Only recently (2 waterings) started pHing water. Previous it was about 7 pH probably.

Strains: Mephisto 3BOG & Sour Stomper - both day 19 from sprout

Climate: 76-78F, RH 60-65%.

Light: Viparspectra XS1500, 150w led at 60%, 23” ht

This has been an issue from early on with the 3BOG particularly. My guess was magnesium deficiency so I recently got some Epsom salts but haven’t used any yet.

I was planning to try some LST or topping at this point, but now I’m thinking that I should just leave them alone. What do you think? (this is my first grow btw)

@ATX57 Coast of Main has lobster compost with plenty of calcium in it for an average grow. By adding calcium you may have thrown the balance out and are locking out the magnesium.

Ps. don't buy the cheap soil probes they do not work. Get an Accurate 8 or a Blue Lab.

Stop adding cal-mag.

 

[ATX57]

@ATX57 Coast of Main has lobster compost with plenty of calcium in it for an average grow. By adding calcium you may have thrown the balance out and are locking out the magnesium.

View attachment 1376562

Ps. don't buy the cheap soil probes they do not work. Get an Accurate 8 or a Blue Lab.

Stop adding cal-mag.

Understood, thanks. I’ll stop the cal-mag. But the symptoms were showing up early, well before I added any cal-mag (or anything else). Could it have just been watering at a high pH causing a lock out? Should I add Epsom salts in my next watering?

Oh, and do you think that topping the Stomper would be ok at this point or risky because of its condition? I’m gonna leave the 3BOG alone.

 

[Mañ'O'Green]

Watering soil at 7 PH will not cause that kind of problem over a short period. The soil will have a lot of buffering power. No do not add Mg There is plenty in there it is just being locked out. Just water for a while. Less is more.

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[pop22]

Chances are, the problem is either lockout due to too much of something, or a PH issue, not a deficiency. I suspect a lockout due to too much Calcium. Stonington Blend has a lot of calcium in it to start with, adding the calmag to it may be too much. Your tap water at 80 ppm should have enough Magnesium. I'd do a runoff test to check your ph also. Usually in organic soils, PH is not an issue however with very rich blends you can run into low PH issues. Campare the runoff to the PH of the water your using. If the PH of the runoff is a lot lower than the water source, you've got a PH issue. Correcting PH in organic soil is tricky. You don't want to use lime, too much calcium if it is already high, best to use PH up in your water. And you only try to raise it a bit and slowly. If your runoff is say, 5.9, ph your water to 6.8 for two waterings then drop back to 6.6 and keep it there.
Also, I like to keep the PH of water at 6.5 to 6.6 in organic soil.

 

[mohawk warrior]

And if the soil sat for the first grow and now it’s doing that, I’d say the organic stuff had a bit more time to cook which is why it’s doing it now and not before... or the plants are just finicky.. some eat a lot some eat a little
I personally like the heavy eaters.

Blue labs probes are nice ... just saying