Original: The council decided against the Arians overwhelmingly ( of the estimated 250 -- 318 attendees , all but two voted against AriusSchaff 's History of the Christian Church , Volume III , Nicene and Post-Nicene Christianity , § 120 .
Simplified: The council decided against the Arians ( of the estimated 250-318 attendees , all but 2 voted against Arius ) .