it doesnt say nothing and the 16 i got are 2 weeks old there 4 leafs and the other ones are 4 weeks in hydro the other 16 are in dirt 2 weeks old and i got 1 in soil that is like 2 months old there all 1000watt 24/7
uhm and this is what label says
3tsp of flora gro
then
2 tsp of flora micro...