The leaves started showing signs of turning brown at the tips, and curling upward, at day 22. I had moved the Jiffy pots to 6" pots (using same type of soil) at day 15.
I can't tell if they are N-deficient or what. I use 6400K CFL bulbs about 2.5" away, getting about 3000 lumens/sq. ft. One bulb for each plant. I water sparingly to not drown them. Fan on constantly. Lights on 18/6 cycle. Temp a steady 26-28C. Humidity 69%. Using Northern Lights seeds.
Here is a photo of one plant.
Any help will be appreciated. This is my very first grow. Growth is very very slow. At day 25, maybe 3" tall.
I can't tell if they are N-deficient or what. I use 6400K CFL bulbs about 2.5" away, getting about 3000 lumens/sq. ft. One bulb for each plant. I water sparingly to not drown them. Fan on constantly. Lights on 18/6 cycle. Temp a steady 26-28C. Humidity 69%. Using Northern Lights seeds.
Here is a photo of one plant.
Any help will be appreciated. This is my very first grow. Growth is very very slow. At day 25, maybe 3" tall.