Leaves twisting, canoeing after watering

[afman916]

So have run into my first real snag during first grow. Today was watering day, and I just went to check on the girls before lights out - when I unzipped the tent, things were not looking good. Some of the leaves (mainly top of the White Widow) are literally pointing straight up, the majority of the leaves across all plants are canoeing, and a select few are twisting/turning over.

I'm starting week 3 of flower, and up until this point my watering schedule was as such:

1x a week, roughly 3/4 - 1 gallon of water
Per gallon -
1 T Neptunes Fish and Seaweed
1 T Ful Power
1/4 t TM-7
1/4 t aloe vera
1/2 t silica
3/4 t coconut powder

Alternating between either SST or AACT as the "base" gallon of water to which the amendments are added. Water has been purified water from local grocery store, every time.

3x3 tent, 40-60% humidity, 73-77 degrees. This has been constant since they've been in the tent (about 4 weeks ago, until then were in a closet under T5s).

Growing in BAS mix, topdressed at transplant to 5 gallon (4 weeks ago) and flip to flower (2 weeks ago) with their topdress kit.

Differences with this watering -

Used no amendments. Decided to take a week off, as BAS is touted as water-only and wanted to see if I noticed a change.

Gave everyone half a gallon, as I will be away next weekend and will be watering again before I leave, not waiting until I return.

The last 2 cups everyone got was from my Mavea pitcher. I didn't get enough water from the grocery store, and laziness caused me to just fill up another gallon 3/4 of the way with water from the tap, ran through a Mavea charcoal filter. The water was out of the fridge, so I let it warm up to about room temp. but it was still slightly cool.

I haven't had a single issue up until this point. I'm leaning towards some sort of pH issue with the tap water, but it was literally two cups. And I was under the impression soil naturally buffers pH, which is why I haven't pH'd ONCE since I've started. And again, no issues with the grocery store purified water.

I'm at a loss, and honestly, when I opened the tent my heart sank a little. I'd appreciate any advice you guys have to offer. Hoping when I get home from work tomorrow and unzip the tent I have better things to look at.

 

[dansbuds]

post pics without the HPS lights so we can see the true colors of the plant . because honestly , i see nothing wrong .

dunno the first thing about your soil mix , i'm a coco grower .

 

[afman916]

I can post non-HPS shots tomorrow - lights just kicked off for the evening and I'll leave for work before they kick on.

It's the curling/twisting that has me concerned, especially the top of the WW (back left plant). I mean those leaves are sticking STRAIGHT up and twisted to boot.

Plants are dark green, had them out today during watering to inspect. When I went to go tuck them in...whoa. Wasn't prepared for all the twisting and canoeing of the leaves.

 

[troutman]

The temp should be a few degrees cooler at night.
Same temps all the time stresses out plants I think.
In nature nighttime drops are normal.
I try for 5 less degrees F at night.

I'm not saying that's your problem. But you never know.

 

[afman916]

Thank man, yeah during lights out it drops to about 68 or so. Like I said, my environment has been constant temp and humidity-wise and nary a problem up until yesterday. Tried to find a green light app for the iPhone so I could check on them this morning but no dice. Guess we'll see tonight when I get home from work...

 

[KetchupSnorlax]

Thwy look like they might be praying for magnesium or sulfer... I could be totaly wrong though. I heard an old saying that the leaves pointing or curling up are praying for mag/sulf.