Translation of dosage in German

I work as an actor in the theater. I have studied English for seven years, French and Spanish for two years. Well, my level of Spanish is too low to have a good conversation, but I understand it.
I am considering an additional project for our website, called 'the better option'. Basically it would be writing something about Spanish or English grammar. Would you be interested in participating? I met great people there.
I have not managed to contact you. And please write me only to the Vocabulix inbox and not directly to my other email addresses? When is the best time to reach you? For me anytime is good.