I move the plants in a 2.5l recipient. Probably it will need around 2 weeks for the roots to be ready for the final recipient...they all looking good. The small one is getting better. I did topping on all 4 big plants and I will leave the small one in a "one bud".
So far i am happy. They seems to support the nutrient... weather is getting cooler here already, maybe it's the reason one is a bit purple