How much Spanish do I need to know to teach it at the middle school level?

I am in a grad program to become a teacher. My advisor says that I only need 2 more course hours for a Spanish endorsement at the middle school level, because I took a lot of Spanish for my undergrad. However, that was a very long time ago. I can get by in simple conversations, but I am by no means fluent. Is this enough, or should I not bother getting those 2 extra hours?