Can anybody tell me what's wrong with this seedling?

curious2garden

Well-Known Mod
Staff member
cant tell if praise or shot at previous post...
I do my best to just share my personal experiences and not just spew stuff i want to be accepted as fact.
I have very low ppm tap and get spots like that on stuff thats a few days old that usually go away in a day or two. It always goes away so never thought much of it. You think a small does would help speed things up a bit? im all for faster.
I didn't answer you, sorry. I'm smoking my new table that just finished curing and I'm a lil' fractured. I run about 250ish TDS in my tap mostly Ca/Mg. So if your tap is a lot lower add a little Ca/Mg. I use General Hydroponics CaliMagic with good results.
 

Hollatchaboy

Well-Known Member
Yes the TDS of your tap. I'm assuming you are US and that most of your tap TDS is composed of Ca and Mg at seedling stage that's all they need.


H2O2 is very hot, Cl is a lot more forgiving for reservoir asepsis.
My tap just read 479ppm...... I'll have to keep the chlorine in mind... I've used peroxide in the past and got pretty good results.. but always willing to try new ideas.
 

curious2garden

Well-Known Mod
Staff member
My tap just read 479ppm...... I'll have to keep the chlorine in mind... I've used peroxide in the past and got pretty good results.. but always willing to try new ideas.
Add RO to take it down to around 200ish TDS and pH it to 5.8 to 6.0

If H2O2 works for you great, use it. Many roads lead to a great harvest use them but give your girl a drink ;D
 
Top