Hi guys. I'm starting my second indoor grow and using the same methods as the first, which produced fine results.
Here's what I have going:
Sensi Jack Herer
1000w Sodium in air cooled hood
Canna medium and nutrients used as directed at ph 5.5-6.5
CO2 enhanced to 1500ppm
The plants in the pics have been under the light a couple weeks. Several of the seeds were slow to germinate and sprouted weakly, but are catching up.
But here's the question...take a look at the leaves: They are pale, low luster, wrinkled and curling upward.
I've been treating it as a general nutrient deficiency (owing to rapid growth w CO2) and gradually increasing the nutrient concentration (TerraVega), and adding a TBSP of blood meal to the soil) but am really not seeing results over several days.
What am I missing?
This first photo from a week ago.
These next three show leaves today.