First grow week 6 from seed, starting LST

[Cosmic_Charlie]

5x5 tent, daytime temps 80 degrees hovering around 40 percent humidity. Organic amended soil, 9 liter pots watering with reverse osmosis water. I’m wondering if I should put organic cal mag in the water, I see some purple stem striping on almost all of them and I’m not sure if it’s a deficiency. I believe they’ve all been topped now and I’m starting lst on a few of them. Let me know what you think and any advice

 

[Wattzzup]

Organic amended soil shouldn’t need cal mag. You do look short on mag. But I would just use Epsom. Looking good so far.

 

[Cosmic_Charlie]

Organic amended soil shouldn’t need cal mag. You do look short on mag. But I would just use Epsom. Looking good so far.

Epsom salt? How much per gallon of soil would you recommend to start?

 

[Wattzzup]

I use about one gram per gallon of water.

What lights are you using?

 

[Cosmic_Charlie]

I use about one gram per gallon of water.

What lights are you using?

I have 2 spider farmer sf2000 I think they have 200 watts output each

 

[kovidkough]

make sure it's not scented Epsom, shits so cheap you can get it at dollar store

 

[Wattzzup]

Yo

I have 2 spider farmer sf2000 I think they have 200 watts output each

My LEDs are causing a mag def after two weeks in soil. They suck it up.