Light bleach? Iron?

[jassa]

1 week into flower and the branches closest the 250w HPS is very light green almost yellow.

Are they hungry? N is supposed to start from bottom.. So prolly cant be that.
And as you can see in the picture, same plant but the other branch wasnt as close as the lighter one...
So thats why im thinking light bleach, allthough i never experienced that before and light is 15cm from tops so not that close :/

Gold label light mix soil, they only had one feeding with organic bloom from plant magic.

all help appreciated

 

[jassa]

OK so here is a better picture with the lights off, the light green is spreading.

Iron def? im lost here, but prolly nutes issues.
Gold label light mix soil, so hopefully just hungry :/

 

[BuddroGreen]

Looks like iron or zinc. If it starts from the inside of the leaf and moves out toward the tip that would most likely be iron def.

 

[Julz]

They may be a little over or under watered also? My plants always take a bit to get used to my flower room from my veg room. The plants continue to grow 21 days into flower, so veg nutes still help them out for the first three weeks of veg. That might give 'em a little of what they want depending on your line.

 

[jassa]

Thx for looking into it Julz and Buddrogreen.
Im thinking my light mix soil is out of nutes and thats what caused the yellowing! They still keep growing and after 4ml + 4ml organic grow nutes 5-3-3 they look a bit greener dont you think?

 

[Julz]

They look better to me!