Green leafs go lighter from tips (good photos)

4 weeks from seed.
They are under 150W CLF on 18/6 .

watering as it needed (if the soil is dry)

afret the 2nd week growing stopped and green color started to fade begining from the tips.

any ideas?

Have you fed it anything?

It was the second week when this incident started.
I didn't give anything for the first 2 weeks i thought it was to early to fed.
Currently they are on a high N diet. Ph of the soil is 6.3.

high po said:

4 weeks from seed.
They are under 150W CLF on 18/6 .

watering as it needed (if the soil is dry)

afret the 2nd week growing stopped and green color started to fade begining from the tips.

any ideas?

View attachment 1364914View attachment 1364916

Click to expand...

to much N and overwatered. no nutes for 1-2 weeks then bring back reduced nutes. the soil can appear dry but it may only be the top inch, make sure pot is very light before watering. Also for 4 weeks old should be 3x that size.

Too much N?
I wasn't using anything till this happened.
How can it be too much N?