First, the mystery of 14 pays per year (all before tax):
18000 / 12 = 1500
x 12 = 18000
18000 / 14 = 1285.71
x 14 = 18000
It's the same amount of money, numb nuts.
And what's the point moving to Germany when they'll only give you a €450 minijob anyway? I think some 'Spain bloggers' (a broadly middle-aged, self serving, real-estate-hawking lobby) need to learn a bit more about Spain and listen a little less to Germany.
Happy new year.