My plants only 10 days, and the lower leaves have turned yellow and died.

[Karas]

Strain: ICE, medium:coco coir, light one 400w HPS, room temp 75f, ph 5.5-6, Nutrients - General Hydronponics, PPM 300, RH - 60% to 80%, watering once in a 3 days

 

[Jimmycricket]

malnourished.

 

[Jimmycricket]

however the bottom leave or bottom few leaves its very normal to eventually fall off. However at this point its early and it looks to be from nute deficiency.

 

[DrOfDank]

Did you get them wet with nutes whilst feeding?

 

[JJ Bones]

Is you pH correct? Are you using cal-mag?

Try a foliar feed to help.

 

[Karas]

Did you get them wet with nutes whilst feeding?

I red before that in the first 2 weeks Plants should not be fertilized with nuts. Although when i noticed leaves yellowing on the fifth days of growing i added a very small dosage.

 

[Karas]

My ph is correct I always check. I'm not using any cal-mag. Should i use them at this early stage?

 

[Jimmycricket]

Cal mag can not hurt, but it might not be necessary either.

I mean the main thing is coco has no nutes, no minerals. So you got to feed them to the plant.

Judging from the color the plants desperately want more food.

I am not sure if GH nutes have the micro nutes/ minerals that the plant needs (JJ would know).