Lockout? Toxicity? (pics)

Indoor (not experienced dealing with these small sensitive plants!)
Soil Grow under a 90 3 LED
I water every other day and was feeding every other watering; but I haven't fed in the past 2 waterings n=in fear of an abundance of something.
4 weeks into flower
2 Gal Smart pots

Whatever this is I feel like its what killed my last god-damn indoor attempt.

Whatever it is its progression is slow making it really easy to ignore up till now, hopefully someone can help me put a stop to whatever I'm doing wrong!

I always PH my water (tap water but, i just purchased a few gallons of purified water from Walgreens yesterday thinking that the chemicals in the tap water could be my problem, and Ill start using it as soon as I get PH UP cuz it tested low and all I have is PH DOWN bcuz my tap water is high) I usually dial it in a little above 6 but after reading some chart in my research today I'll be more diligent about making sure it hits 6.5 on the dot, before waterings.

Especially because I tested my runoff today and it was only ~5.0 ?? So what does this mean?!! Please help!!


Extra details
420 Formula Soil 4/5
Perlite 1/5


When I feed I use
FF Big Bloom, I started at 1/4 dose but may have moved up to 1/2 dose to rapidly??
Cal-Mag Plus- 2.5ML per 1/2 gallon

I gave them a small top dressing of eb stone ultra bloom 0-10-10 a few weeks back as well.



I vegged for 3 weeks, super cropped the main stem of each of them once at 2 weeks. Upward growth seemed to stop? none of them seem to be getting any closer to light as days go by, i am starting to see some trichs.

I'm sure everyone will say to flush, I'm gunna borrow some final flush from my buddy tonight and his PH Up.
But should I flush them tomorrow morning when I gave them and extra large watering today and as I said previously I usually only water every other day.

Thanks in advance.

-Dookie from the Pines

Crappy pictures but it looks to me like you burned them with too much too soon. Common noob mistake.
JD

I'm not going to suggest flushing, I'm going to suggest starting over. Way too much nutes. A decent soil will give you a solid month of not needing any nutes. Young plants cannot handle much nutes at all and you will be much better served to let a couple bottom fan leaves fade a bit before you start feeding. Sorry, don't mean to sound harsh because I've been there too and there is always a next time.

Really bad nute burn ....with more suckers on the way, any more pics turn the led off and use the flash, thanks.
considering you method, use 50% perlite to your 'hot' soils at pot up,
Flush with 3 times the volume of the pot, with air temperate Ph neutral water, allow to recover in dim light, one day or overnight......avoid feeding for 4 weeks then resume at half the current rate only resume, when you see a positive improvement.

to my blog: https://www.rollitup.org/Journal/Entry/flush-baby-flush.27513/