Hello, thanks for the reply!
1) I use Atami B'cucc COCO
http://www.hydroponics.eu/atami-b-cu...2x5l~1129.html
because my substrate is a mix of coco (10%) and clay (90%)
2) I used 2.3 mL of solution A and 1.35 mL of sol B per gallon of water
3) I use tap water (EC=0.6 mS)
4) The average pH value is 5.9
5) I use ADWA AD12
6) I use 90cm
led bar (40W) with 5 different wavelengths: 660nm - 630nm - 430- 470nm - 6500k