New leaves in center discolored

[Slap]

I have never grown a cannibis plant before. Hopefully you can see the leaf discoloration in the center of new leaves. Anyone know why?

 

[Vagician]

What pH are you watering with? Are you feeding it nutrients yet? What brand of soil are you using? New growth yellowing could be iron deficiency but most seedlings and clones don't need a lot of nutrients so I'm leaning toward a pH issue. Look into "pH nutrient availability" on google.

How Soil pH affects availability of plant nutrients

Soil pH plays a critical role to the absorption and utilisation of essential trace elements required for healthy plant growth. ...

www.agrobest.com.au

 

[Slap]

Ok! I will get a test kit. Been using rain water. Other than that does it look ok?

 

[Slap]

Ok! I will get a test kit. Been using rain water. Other than that does it look ok?

What about the purplish color in the very middle?

 

[Anthem]

What about the purplish color in the very middle?

What kind of light are you using an what is the distance form the seedling?

 

[Slap]

I started to put it outside, It has been really nice here in southern Cali. I also have a small grow light with three arms. I put it about 6in away

 

[Slap]

I m going to have to grow it outside, other people in house don't like the smell. I can't comprehend their sense of smell. LoL

 

[Slap]

What kind of light are you using an what is the distance form the seedling?

I started to put it outside it's been nice in So Cal and using a low wattage light with the three bendable arms. about 4 to 6 in. away. Leaves were on the dark side. Started to put it outside they have been lightening up.

 

[Slap]

What kind of light are you using an what is the distance form the seedling?

After being outside all day, the leaves look like this. They were straight, when I put her outside. I know it's not lack of water.