you need more ammonia in order to really get it going.
a shrimp as suggested would help or dosing ammonia, either way you want to notch the ammonia up around 2 ppm
and then let it do it's thing.
those products also have a shelf life, I assume what you used was still good and not past it's "use by" date.
how many pounds of sand did you use and did you add any "live" rock as well?
you should have at least 60-70 lbs.