new toxik

I just got the redhead toxik from my local bass pro shop. I love the bow i took off the cheap rest that came with it and put a qad hd. ( much better ) I want to replace the string next. Here's the question i don't no how long the string is and what brand is the best to get for this bow. I shoot 8 to 10 sets a day (12 arrows each set) what is the best string that will hold up.

Thanks for any response