My seedlings turn yellow.
It is now two weeks after germination.
The environment is DWC.
Nutrients are ph perfect.
ppm is 300.
ph is 5.5〜6.5
Room temperature is 24°C during the day and 21°C at night.
Humidity is 60-70%.
Light is white led with a distance of 24 inches.
I use two 12 inch fans to shake the seedlings slightly.
I don’t know what the problem is.
Please help me.
It’s hard to tell but looks like possible iron or magnesium deficiency.
Thank you for your reply.
I thought so too, I added 5ml of GH cal mag to 10 liters.
I had that look too. Little extra Nitrogen was the fix for me.
I agree with Ron. Nitrogen needed. Either start feeding or up it a bit
Thank you everyone.
I changed the amount of nutrients from a quarter to half of the recommended amount.
and did a foliar spray with calmag ,iron and a small amount of nitrogen.
It’s been two days since the change.
I feel a little better.
I will keep you posted on the progress.
Thank you very much.
