I am wondering if this excess Phosphorus?

[OntarioGoldenHash]

Hay all,

I am trying my hand at mother plants.

These ladies appear to have excess P, could one of you kind experts please confirm my findings, thanks.

 

[LostGirl]

Normally when the rigid edge of the leaf turns it's magnesium. Calcium magnesium will not correct this. Magnesium in the form of plain Epsom salt will. I generally use 200 PPM of plain nonscented Epsom salt approximately a half a teaspoon added to your next feed. If you're currently using calcium magnesium eliminate it for the substitution of the Epsom salt

From your picture she looks ever so slightly light green the Epsom salt shot will darken her up a little

 

[Organic13]

Can you show photos of your entire plant? I see the leaf looks like it is folding/curling inward. For the advanced growers to help better diagnose, please take more photos of the entire plant and clear close ups of anything questionable.

Had medium are your plants in?

Light strength and distance from canopy?

Watering schedule and amount?

What are you feeding and how often?

Where is your fan in correlation to your plants? Directly on them? Distance?

 

[OntarioGoldenHash]

Normally when the rigid edge of the leaf turns it's magnesium. Calcium magnesium will not correct this. Magnesium in the form of plain Epsom salt will. I generally use 200 PPM of plain nonscented Epsom salt approximately a half a teaspoon added to your next feed. If you're currently using calcium magnesium eliminate it for the substitution of the Epsom salt

From your picture she looks ever so slightly light green the Epsom salt shot will darken her up a little

I used 1tbsp of Magnesium Sulfate (epson salts) every 2 weeks (plus 1tbsp gypsum & 2tbsp rock dust blend), but I did miss a feed due to reasons.

Maybe I need to give more?

Thanks for the input.

 

[OntarioGoldenHash]

Can you show photos of your entire plant? I see the leaf looks like it is folding/curling inward. For the advanced growers to help better diagnose, please take more photos of the entire plant and clear close ups of anything questionable.

Had medium are your plants in?

Light strength and distance from canopy?

Watering schedule and amount?

What are you feeding and how often?

Where is your fan in correlation to your plants? Directly on them? Distance?

Sure, here is most of the info, pH and EC coming later. Some of my other plants DO have purple stems which is from Mag deficiency from my understanding.

Grow Tent Info
AC Infinity 36" x 36" x 72"
43Inch from plant canopy to lights
Lights at 25% - https://acinfinity.com/hydroponics-...ow-light-260w-samsung-lm301h-3x3-ft-coverage/

Light Cycle
18/6

Temp/Humidity
20c / 60% Lights OFF
24c / 56% Lights ON

Soil
Gaia Living Soil
50% ProMix
25% EWC - gaia green
25% Perlite

Pot
1 Gallon fabric (for now)

Feed Schedule - 4 week cycle
Week 1
2 tbsp 4-4-4 - gaia green

Week 2
1 tbsp each of epsom & gypsum - gaia green & dust rock blend

Week 3
NOTHING

Week 4
1 tbsp each of epsom & gypsum & dust rock blend

Repeat

 

[LostGirl]

That's why I asked to see the pictures of the whole plant.

Your plants fine. That's just one of the original first set of leaves at the very bottom and is dying off totally normal and 100% natural there's nothing at all to worry about you have no deficiencies. By the way your plant looks great. Keep up the good work.