You can help me

Thread starter #1
Sorry, I would like to ask a few questions !!!
1 I started training three weeks ago, why some seedlings will grow slowly?
2 Many seedling foliage yellow, greenish veins, leaves whitish, how could this be?

Time: three to four weeks
Variety: White Widow
Soil PH: 6.8
Watering Water PH: 5.5
Temperature: 27 ° C
The level of brightness: 300
Lighting: LED 200W
Lights Time: 24/0

You can help me?
Thank you !!! :圓的愛: