These two are approximately 2 weeks old from germination. I have them under 4 23w 6500k cfls and 3 23w 2700k cfls. As you can see the leaves on both plants will yellow, feel bone dry, and continue to look like the bottom leaves in the attached pictures. I only water 1-2 times per week, they are in FF soil, no nutes have been added, and yesterday I setup a 9 inch fan to cool the lights/canopy. Even the new leaves are starting to yellow at the very tip of them.
I was thinking it was heat stress because until yesterday I didn't use anything to move the air around and cool the area. Could I be using too much light for them being so young? I have the lights at 24/0 for veg.
Any ideas as to what the problem is and how to fix it? Also should I pinch off the leaves at the bottom that don't look like they have a chance of bouncing back?
Thanks.
I was thinking it was heat stress because until yesterday I didn't use anything to move the air around and cool the area. Could I be using too much light for them being so young? I have the lights at 24/0 for veg.
Any ideas as to what the problem is and how to fix it? Also should I pinch off the leaves at the bottom that don't look like they have a chance of bouncing back?
Thanks.
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