Northern lights. Curling sideways

im in the 2nd week of flower on 3 N.lights ladies from fem seeds.
600w sodium in tent.
Carbon filter feeding cooled hood pulled from a remote fan.
Temps around 75 to 80F. Humidity 40-50% depending
After a couple weeks in veg. I transplanted to 5 gal pots.
Soil...50/50 FFOF and Happy frog. Mixed in some dolomite in small rock salt size, earthworm castings, mycos and some xtra perlite. Glad it wasn’t any hotter.
Didn’t have to nute anything the whole time. Finally flipped the switch and got hairs 2 days later. I think they were almost trying to force into flower anyway.
For nutes a bought Humboldt nutrients natural grow, bloom and deuce-duece.
The deuce-deuce was because the grow didn’t have any K of the NPK. Grow is 0-10-0.
So the issue is sideways curling leaves in just some areas (older growth and new).
so I’m a bit confused on how to deal with this. Btw I did note that this first appeared on like the 3rd set of leaves from seed, but was definitely just here and there. Mostly all normal leaves.
Anyone have a clue as to what causes this?

Anyone?

To me it looks like the Claw. I've grown strains where the leaf will sort of appear to spiral. My Gorilla glue last year in fact did that. I've grown lots of NL and never had that issue. IMO it looks like the natural sort of spiral growth coupled with the Claw is what is making it appear like this.

If I were you I'd back off in the N a good bit and make sure they're drying out good between waterings. Curled tips,Dark green leafs and burnt/yellow tips are all indicators of high N ..... They look good though....GL

don't forget that dolomite lime isn't just calcium, it has a lot of Mag in it too. with all the stuff that already comes in ffof and hf, plus ewc, i think you can just go with plain garden lime, and not a lot of that.

I am aware of what the claw is all about but the sideways curl is what got me confused.
I’m tempted to use a touch of the deuce but I keep talking my self out of it. I need to learn more about potassium for sure.

BTW. I have only used nutes once in this grow. 2 waterings ago.
It was a trace amount of grow with 1/4 strength bloom and no potassium.

My CRS is kicking in again. I've had that in the past and never knew what it was. I stumbled across an answer a while back but can't remember now. I think it was too much potassium. I don't think it is that serious though. For a test you cold stop feeding a couple plants and see if it clears up.

Does this look like calcium deficiency?

Leaves twist and turn in different ways.
Overall the plant looks great.
I'm one who would trim back a little.
Larf. Select fans. She's pretty lush.
Now's the time if you are going to.

Goldpan67 said:

Does this look like calcium deficiency?
View attachment 4126784 View attachment 4126785 View attachment 4126786

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Yes.
Is that the same plant?

Yes. Same plant

You PH at all?

Water or mix is ph’ed at 6.4. I need to ph the runoff water. Way back in veg it was low. Like 5.8
The run off that is

That's fine for PH in soil.
Too much mag can also lock out calcium.
You could flush the soil too. It can help lockout.
Then test that runoff.

The curls are nothing.
A deficiency is fixable.
Overall it looks good.

I did flush once before when in late veg. Ran 10 gallons of ph 6.8 water through what I’m guessing is 4 gal pots.
That was because I was suspecting my soil mix was just a bit hot. Ever so slight yellow tips on some of the fans. And just a few signs of semi clawed leaves on a few of them as well. The shade of green throughout the grow has been just a tad dark.
I used my truncheon ec/ppm stick on that runoff and was surprised to see (if I remember right) was around 2.4 to 2.6 ec.
That freaked me out, so I flushed. I flipped the switch to 12/12 a week later and let it ride for about a week or so.
Then I started thinking about needing bloom nutes. Went very light, but did add a trace of grow with the bloom and no K at this point. That’s when the curl came back.
The curl doesn’t concern me as much as the slowed flower growth.
In my humbled realization that I’m still a noob at this botany thing. Lol
I have however had some some very decent grows in the distant past.

Sometimes we think ... and do ... too much.

I still would flush. Best way to neutralize the soil/PH.
Then go to the bloom nutes.

Update:
After adding 1/3 strength bloom, 1/4 duece for the K and 1/2 strength cal-mag, one plant (pictured above) didn’t appreciate that. The fan leaves in the pic got a lot worse. Rest of that plant and the other 2 ladies didn’t change much if at all. So just for the heck of it I flushed all with probably 12 gal of ph water each.
Well see what comes of it.

Tested the first runoff water and it was ph 5.8 to 6.0.
EC was only .7
Hmmm
Honestly, I’m not sure if an ec test is helpful when using organic nutes.
Anyone know about this?
I’ll be researching that tonight

Goldpan67 said:

Tested the first runoff water and it was ph 5.8 to 6.0.
EC was only .7
Hmmm
Honestly, I’m not sure if an ec test is helpful when using organic nutes.
Anyone know about this?
I’ll be researching that tonight

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You're in soil???
Don't go by your runoff ph. It's inaccurate. Use a ph stake, or slurry method.
Ec will be the only reliable method to measure soil. You can mix a sample with RO or distilled water. Just google the ratio.
It's ppm measurement you can't use for soil. The organic material affects the parts per million. Tds is affected this way too.
If your soils ph is below 6.2 or so, it'll affect calcium uptake.
I'd say determine your ph, before anything else. Then go from there.

Best of luck.

I just though I'd share this chart too.
When you find out your soils ph, refer to this chart.
It's a life saver sometimes, soil or hydro!!