As u can see on the last picture one plant has little brown yellow dots, I guess is some cal mag issue due to the water I give to them with is water from bottle at the supermarket, I’m not really sure if my guess is right but so far the rest of them look healthy.
If someone is interested I think also due to air pot vase the water I gave them wasn’t really enough, I was giving them 1.5liter every day divided in 9 plants… so from now on I double the dose to 3liter every so sometimes 0.3liter each plant.