Thank you Joe. Yes, they stopped growing in the last few days and starting gaining a mass. Also the smell is day to day more pronounced.
This round is most interesting to me for light and fertilizer ... with both of us Im happy.
As a replacement for the 400W HPS it would have wanted more (6 veros and 300w I mean), but I like it. For 80x80 tent (2,6x2,6 ft) will be beautiful even in the summer. But we will still see how it ends. And about feeding and soil (biocanna - nl)... between commercial organics fertilizers when I tryed is the one of best. All the time without any major problems.
I think I'm gonna have to plan a flush. They are nicely deep green. Photos distort a bit.