My 100 percent unedumacated guess would be something toxic got into the pot or your feed mix.
There's no way in my mind that it's a deficiency, I just can't believe that our food would be that void of any nutrient, maybe on the weak side but not void completely.
This just looks too serious to...
I'm no expert and this is pretty small, I haven't tried on something so small but if you can without disturbing it then perhaps.
Yes roots need to be first the quicker you can get some soil/coco under her the better. The cup gives you several inches of soil if you fill it.
IMO you should rethink your potting method.
In the beginning most of the growth happens under the soil as opposed to above the soil. This poor plant bottomed out in the first few hours. At least that's how it looks from here.
Once a healthy set of roots are established the girls will dance for...
Closed loop extraction? As in recycling and reclaiming your ISO? Or am I way off base again?
A coffee pot, coffee filter, paper towel to seal the gaps and a soup bowl, electric fry pan for heat. To reclaim the ISO you'll need a small cup that fits inside the coffee pot. I used to do it 20...
What Melville said ^
You can see that it is a fuzzy mold if you can't see that then you need a new monitor asap and/or I'm worried about your driving.
Salts are scalely mold is fuzzy, this picture is as fuzzy as fozzy bear it can't be any clearer.
White fuzzy mold... that is the real question...
When my RO filter gets weak I too foliar feed with it. The reason I switch to foliar feed is because it raises the Ph too much.
Again this thread states that it is somekind acid and that it lowers the Ph. Can both these be true? In my case I use like .8ml to 3 gallons of clean RO water any more...
Any silica that I have used has raised the Ph dramatically.
This thread states that it lowers the Ph... help me I'm confused here. We must be talking about different things.
I thought it was salts at 1st too but then I looked at the picture. It sure looks like mold to me not sure what you all are seeing there.
I've read before that white mold on soil was not as concerning, I know nothing just saying.
You could spray it down with a very strong peroxide solution...