At what point is it safe (recommended) to start adding Chlorine tabs to the pool?

I'm just starting Day 3 of the conversion and there is less reaction or color change at the addition of bleach to the pool but the color is still a dull rust -orange. I just checked the reading and I'm getting:

Total Hardness 150
Total Chlorine .05
FC .05
pH 7.0
Alkalinity 120
CYA 20

This is before the addition of bleach this morning. Looks like I'm off to Walmart for more bleach.