What went wrong with those babies? Want to learn from my mistake

[StuntMaster]

Been feeding lightly 200-300ppm ph 6.2 weekly, but when I´ve first runoff it was 3000ppm...
So been flushing for a week, last runoff was 300ppm...
But the ladies seem not liking theyre life anymore...
Medium is Promix (50peat/50perlite). Nute is Green House Feeding Grow 24-6-12.
Please any advice will be welcome.

 

[Bob's Auto's]

Been feeding lightly 200-300ppm ph 6.2 weekly, but when I´ve first runoff it was 3000ppm...
So been flushing for a week, last runoff was 300ppm...
But the ladies seem not liking theyre life anymore...
Medium is Promix (50peat/50perlite). Nute is Green House Feeding Grow 24-6-12.
Please any advice will be welcome.

Ok, I understand why you'd want to flush, but that has made everything, except the high ppm, out off whack...Best to add some product like Bactrex or if you're Stateside, Recharge. Adding some mycorrhiza product, like DynoMyco will also help long run.

 

[StuntMaster]

Ok, I understand why you'd want to flush, but that has made everything, except the high ppm, out off whack...Best to add some product like Bactrex or if you're Stateside, Recharge. Adding some mycorrhiza product, like DynoMyco will also help long run.

Hi Bob,

Tks for replying. Ive tested runoff cause since it was already in lockout with bottom leaves starting to dry and new growth discolored like clorosis or something.
Got from 3000 to 300ppm runoff flushed filtered tap water phed 6.3 35ppm.
Then let it dry for 3 days, and been only giving plain water.
But they continued to dry from the bottom and slow yellow new growth on the top.

I really would like to understand whats going on.
9 FB seeds trashed already.

I have Humic Acids and Seaweed extract product that I can apply. Green House Feeding Bioenhancer.

Next run Im going for supersoil.

 

[Bob's Auto's]

Hi Bob,

Tks for replying. Ive tested runoff cause since it was already in lockout with bottom leaves starting to dry and new growth discolored like clorosis or something.
Got from 3000 to 300ppm runoff flushed filtered tap water phed 6.3 35ppm.
Then let it dry for 3 days, and been only giving plain water.
But they continued to dry from the bottom and slow yellow new growth on the top.

I really would like to understand whats going on.
9 FB seeds trashed already.

I have Humic Acids and Seaweed extract product that I can apply. Green House Feeding Bioenhancer.

Next run Im going for supersoil.

The medium you use requires you to do one of two things. Either mix in slow release nutrients and add bacteria/myco and go with water only ór you can treat it as coco and water every time with nutrients mixed in and pH'ed to the right value, but 20% drain to waste. This way you'll never end up with such high salt build up in the soil.
By flushing the medium with water you most likely have removed any buffering (ie, dolomite or calcium) agent alongside the surplus of nutrients. So you'll also have to pay attention as the pH will not be very stable. Giving plain water will swing the pH the wrong way, so what I would do is mix up a normal dose of about 500ppm pH'd to the value recommended on the bag of your Promix. Water this in until 20% of the solution is recuperated. ie, if you give 1L and recuperate 200ml from the bottom, then you are golden. If you need to give 5L of solution before it starts dripping in the tray, you'll need to recuperate 1L. Then wait until the pots are light again before you feed again.
Hope this make's sense
I think you just need to find your way of growing as we all have/had to do. I can recommend Organic pre-amended soils loaded with bacteria and myco very much.
I'm using BioTabs and can give my plants plain unadulterated water, but that's only because I have an army of bacteria and myco processing everything in the soil and providing it to the roots

 

[StuntMaster]

Well, I don´t wanna post pics anymore, but so that you guys know... 12 seeds later... now with living soil only water no nutes... SAME ISSUES AGAIN... yellowing new growth etc etc

bought a lux meter... turns up it was LIGHT BLEACHING all the time... was consistently giving about 20k+ lux for seedlings... those lm301 chips are damn powerful even dimmed.

Thanks all for your concern.

 

[StuntMaster]

Ok, quick update. Now I don´t think it´s the light anymore.
It´s been at 40" and 50% dropping 10k lux on 3 poor suffering seedlings.

It´s not feeding or ph as well, this last try is with a trusted living soil maker here where I live.
My tap water is 7 ppm 80, and just for the case I´ve phed 6.5 for the last waterings.

Now I´m fighting with Offgassing maybe. Removed a PVC Curtain I had in the grow door that was venting intake.
Added CO2 bag in the tent. AC is kept on ventilating 24/7. Let´s see. 12 seeds already with no luck.

I do have a viewing window on the tent, that I´m considering cutting off the plastic thinking could be offgassing as well.

 

[JP1]

If it's just light burn, they can recover. In this thread you can see the light damage I had from using a new light and how they're recovering

https://www.autoflower.org/threads/jp1-way-over-my-head.88679/

 

[StuntMaster]

wtf is going on man! frustrating

 

[StuntMaster]

Outdoors and sunlight the poor things reacted. Light? Offgassing?

 

[Bill.de.Cat]

Outdoors and sunlight the poor things reacted. Light? Offgassing?

Doubt a small pvc window in your tent could produce enough noxious gas to bother your seedlings....