Yellowing leaf margins?

WHat is the pH of your tap water? My shitty tap is low PPM but 9.4 pH (will fry plants, ask me how I know).

Distorted new leaves and yellowing are an indicator of K deficiency (GROW WEED EASY*) and/ or Cal deficiency (Lowenfels; TEAMING WITH NUTRIENTS, p 106).

* How to fix Cannabis Potassium Deficiency (K) Pics & Symptoms (growweedeasy.com)

 

pH7.5 is 10 times more alkiline than pH 6.5.
Interesting that the leaves twist.
Could be the light stress. IF its nute deficiency, it will really show when you flip to flower. Lets hope its the light stress.

 

I agree with WW that there is likely pH fuckery afoot.
@Weedweasle NINE POINT FOUR holy crap dude! That's not tap water, that's industrial solvent lol! I bet you got like 55 gallon drums of pH down

 

PH fuckery- I like that term.
Yeah, in the last year I’ve gone through almost 2 gallons of table vinegar. I grow a bunch of vegetables in containers outdoors, and I have to pH them when I water as well. A water works engineer told me, after I inquired about the high alkalinity of my water, municipalities utilize a high pH so the pipes (and any lead solder) are coated with a mineral scale, effectively sealing off any contact with heavy metals. Every place I’ve ever lived has had tap water in the nines. A garden plot can buffer that high pH, a grow container can’t.

 

My guess is it really wants a bigger Potter. Which matters more when your growing in a dry out, traditional amendment style, vs something like hydro where your delivering the food via your solution, routinely.
Comes back to the possibility it has grown past available foods and can't get back to them.
My solution or what I would do(if not transplanting), would be to start feeding it fertilizers at recommended doses every seven to ten days(if preferred organic I'd run fish emulsion as to not clog up the porosity of the media, however that's a personal choice, some people use dry amendments and top dress I find it causes potential pest issues on top of possible clogging)
Anyways, beautiful plant all the same, even with it's thwartage. I wouldn't blame genetics, she look strong. Best of luck

 

How much do you water with when you do water?
My ten gal pots are 16" wide 12 tall, just saying, with the style you are looking at running, I'd suggest to at least move to a couple gallons up in future.
What foods have you at hand?
I would probably be looking at adding calmag, a bloom or low Nitrogen fish emulsion and kelp meal, however that's just me and considering your in a tent. As well as making sure to water at least 3 time between feeds as to not get them closed off to searching for foods.

 

pH your water bro.

 

Yeah, I hear ya, but there is nothing bad going to happen if you pH your water, its all upside except the tmie and effort. If it doesn't change your grow, stop doing it and call it a validation. Its the simple-est thing you can control. The nutes listed in a prior post are in the neighborhood of 14.55 - 12 - 9.6 (N-P-K), with additional Cal Mag and Epsom salt. Do you pH your feeding water after all those additives?

I'm finding out that a lot of the "Living Soil" benefits are based on a well built soil, and experenced builder (which I am not, and have not mastered). Fox Farms ocean forest is not what I would call a living soil, its a base soil. Living soil should not require nutrients. On my last grow (only my second), the lightly amended FFOF ran out of gas right after flower; leaf color faded and so did the vigor. Even the sugar leaves turned yellow, almost up to the flower. That soil was also amended with a commercial micrbiology innoculant. A living soil it was not.

pH your watering-can before feeding and see where that falls. Wouldn't hurt to do a slurry either. Im definatly not an expert, but Im predicting that the slurry will trend high, following the water's pH. Killer grow BTW

 

Check your run off ph. The soil you mentioned using should have lime in it and the soil it self should be buffering the ph. I wouldn't rush to ph the water if it's already being bufferd. Symptoms look like over feeding, but could be a lock out due to ph. Some nutes are only absorbed at a certain ph level. You should do a slurry test. My guess is the ph is going in high, would be coming out normal, but extra nutes are throwing it off.

 

soil link: Easy Organic Soil Mix for Beginners
Six weeks or older, thin it out then flip it
Your plant looks in good enough shape to make it to harvest.
Sea weed and fish emulsion wouldn’t hurt. You don’t want a high N food after you flip.

 

That’s a judgement call. I’ve never had an issue full strength, but that’s your call.