Ok, so I stoped feed them, just tap water. All the leaves are showing nutrient burn so I belive it was the right choice to stop.
Buds are winning a good weight, they have plenty of cristals, sticky and compact and even if they do not smell that much they do have a really sweet smell, make me want to eat them haha.
Also tricomes are not developing in the purple branches, so I think my LED has more power that I tought, next grow I should build a bigger grow space with plenty of room for plants and a good space for light, I think 14" in flowering will be ok.
I allready order a few more LEDs to the factory so a will be playing with those during my next grow.
Anyway, hope you guys like this grow and can learn for my mistakes.