Iron deficiency? Light bleaching? Please help!

Critical Purple Autoflower from GCS

SOIL: fox farm ocean forest
LIGHT: 600W LED & 100W CFL
3 Gal. pot
Running continuous 20/4 light sched.


Sprout broke soil on Jan. 10 so seedling is 1 week old at this point. Also this is my first grow so forgive me if I’m missing anything....

So from doing research I think I’m having one of 2 problems already with this week old seedling. The newest leaves sprouting are coming out a much lighter color (almost yellow/white) and is spreading to the older bigger leaves starting from the base of the lead toward the tips.

could it be iron deficiency? I am feeding nothing except water ph’d to 6.4.... I understand that FF Ocean forest can be a little hot for seedlings so I planned to hold out on Nutes for a few weeks.

or could it be light bleaching? This is something I’m not familiar with at all.The 600w led is about 18in from the top of the seedling. Also the single CFLis pointing at it horizontally from the ground about 8 in.away from the plant. Am giving too much light?

or do you guys have any other ideas? Please help, I can use all I can get thanks guys!

pics below

8" away for the CFL is fine, too far if anything. As for LED, no clue.. Plant looks pretty normal. That tops should almost always be a bit yellow like that (iron chlorosis) if your soil is properly ammended with lime, except during aggressive feeding.

100W or (probably 23W actual - "100W equivilent" CFL) is good enough for now, you can turn off the LED. It will probably help if it's yellower than it looks in the pics.

Awesome I’ll try cutting out the LED until it gets a little bigger. Thanks a lot!!

Looks fine to me so far, new growth is going to be a lighter green

Update Day 11 since sprout
Yellow color seems to be fading after I raised the light up about 8 in more. Added so more soil on top to bury the stem a bit. This morning the leaves are drooling a little bit. Can’t be over watering I haven’t watered in 3 days - was planning on watering today. Does this look like it’s thirsty? Am I watering too infrequently? Thanks for any tips you might think of