Well I'm not sure 'cause I these plants come from another place where I have these plants:
ImageShack Gallery
and they are in the same soil and I've tried everything I've thought of fertilizerwise in this other place where I have the problems.
And that place is actually a much better place space and temperaturewise.
It's getting frustrating to find out what the problem is there because this was supposed to be my new growroom and it looks awesome but just kills plants

That really sucks