Hi. I zapped my pet and got the Common Experiment .

What do I have to do to get the achievement that goes with it? Its under Legacy in the achievements. I've tried making the pet active and refreshing on the pet page etc... not sure what to do.

legacy achievements are no longer available, since they were before HAs and were used as such.

You can't get the achievement. Legacy achievements are from the old achievement system,and no longer attainable.

oh okay