To allow for more space I took out 4 of the 6 plants and also set a little SCROG net to keep the colas from growing too high, LTS for even canopy should have been started way before (as soon as 3rd week of veg) but I thought the plants would't grow so tall so that it was not going to be needed. The plants are now being watered every two days and ferilized every two waterings. You can still see a bit of yellow in the lower leaves but again it seems to be from the previous issue with the nutrient deficiency, no new signs of eficiencies have appeared.
For the next runs in this tent I'll be using slightly bigger pots and less plants since the genetics from fast buds seem to turn into monsters! I might even consider using HST techniques such as topping so as to have a more even and lower canopy in this tent since is only 1,6 m high (esasily outgrowed).
So far for this strain I recomend heavy feeding, plenty of space and some LTS or HTS to control height of the main cola.