leaves turning color

[detroitfish]

was wondering if anyone could help me with my plants only the inner node leaves are turning blackish color and seem a little wilty i flushed them today and ill see if that helps but ph is 7 and i use sholtz bloom fret 10-54-10 they have been on 12-12 light for 8 days now with a 5000kelvin cfl 105 watt

[detroitfish]

also what does it mean when your leaves are a real light green instead of a darker green is it some kind of chemical deficency?

[stinkyattic]

You almost always see new growth comparatively yellow at the tops during the switch to flower. Get your pH down to ~6.8 and make sure that if you use Schultz you give a really good flush at some point soon to avoid salt buildup. But they look great.

[detroitfish]

i flushed them 2 days ago and they seem ok but you cant really tell from that pic.illtry to post another tonight after work . a small portion of the leave on the new growth has black on them .doesent look right at all.i appreciate your help stinky you got it going on! oh and i opened up there grow room so they can breath better. :D

[detroitfish]

here are some new pics stinky hopefully you can see what i mean . i think they got to hot and humid and cooled down to quick ?