Simple question, no?
Piper I got when he was about two-three months old.
Shade I got when she was three-four months old.
Joey I got just before he turned three (Got him on March 1, his hatch date is March 14).
Petey I got when he was probably 13 (got him in August of 2008, hatch year is 1995).
Zuri was 21 months old when I got him.