I use my 2 600W HPS light for veg as for blossoming.

I decided for a 2 to 3 week veg because they'll grow a lot more in the pre-blossoming fase with that amount of power.

I added some CO² tablets too the water for additional nodes, my objective is a not too tall, wide and strong plant.

They're not that tall yet, they're about 25 cm now. Next watering I'm giving them water from the bottom of the pot. The roots have grown enough for that now.

Untill now I've done one thing wrong. I set the plants on a high nutrient soilwhen they were small, so the plants are a little light green and recouperating now.