your thoughts on what might be going on with this young plant

[steve1966]

Pictured are four surviving of my f2 seedlings. (This is my second grow)
The first two pictures are of the 6th seedling which is about a month and a half old.
The other three were started about a week later.
The 9th seedling, in the solo cup still, started out and is still much smaller than the rest.
I can't quite tell with the 6th seedling if the yellow discoloration on the leaves is a light related issue or nutrient issue as the other three seedlings are doing well in the same tent with the same conditions, soil and nutrients. I don't want to change anything up and make things worse.
No leaf curl or tip burn, either.
I understand that each plant has it's own needs, just curious if anything in particular jumps out regarding the yellow spots/markings on the leaves of the 6th plant (first two pix).
I also realize the red diodes made the leaves of the others look purplish, but they appear healthy with no signs of yellowing or other stress.


Temp is around 74 f and rH is averaging 70 %
soil with 4-4-4 gaia green
pH 6.5


thanks for the insight.

 

[BearWater]

Did you top dress or amend with the Gaia?

 

[LoveGrowingIt]

Temp is around 74 f and rH is averaging 70 %

I'd start by reducing the humidity to below 60%.

 

[steve1966]

Did you top dress or amend with the Gaia?

I have not amended yet, I started in soil and gaia green 4-4-4 at the recommended application. Guessing it is time for a feeding,

 

[BearWater]

Temp is around 74 f and rH is averaging 70 %
soil with 4-4-4 gaia green
pH 6.5

How is the Gaia in the soil? Almost looks like they are starting to get hungry from your light? What light are you using? What power setting is on and how far from or close too the plants are they?

But im with LoveGrowingIt and backing the Rh down : )

 

[steve1966]

How is the Gaia in the soil? Almost looks like they are starting to get hungry from your light? What light are you using? What power setting is on and how far from or close too the plants are they?

But im with LoveGrowingIt and backing the Rh down : )

OK, the lower rH will be the first step.
When I transplanted them from solo cups, I mixed the Gaia 4-4-4 in with potting soil (.05,.05,.05 npk), and some extra perlite.
The light is a 130 watt (rated) FeCida model 600 at about 40 percent and at about 24 inches from tops.
in a 2x2 tent.
Based on your observations and comments, I will lower the rH and top amend with 4-4-4 and wait :)
thanks.

 

[BearWater]

OK, the lower rH will be the first step.
When I transplanted them from solo cups, I mixed the Gaia 4-4-4 in with potting soil (.05,.05,.05 npk), and some extra perlite.
The light is a 130 watt (rated) FeCida model 600 at about 40 percent and at about 24 inches from tops.
in a 2x2 tent.
Based on your observations and comments, I will lower the rH and top amend with 4-4-4 and wait :)
thanks.

You might even try backing backing off your light power wise or raising it a tad. Those little leds will totally cook a plant : )