My baby BP (well, 83 grams) ate the day after we brought her home. Took maybe 30 seconds to strike.

The next week she also ate, and almost as quick.

Today, she seemed to know what the little plastic tubs was for, we put here in it, she coiled loosely, and hit the mouse as soon at he hit the floor! (the mouse picked himself up facing Juliet, so she went right for it!)