I believe I had miss calculate the year we own her. We have her since mid of 2006. So, that should be 3 years now. But she was this size since last year anyway. I got her about the size of my thumb and it just growing like mad. I had to get a 4ft tank because of her(she is my wife's fish :sweatdrop: )
I guest she is one of the luck one because she grow up with all my guppies and I feed them something like brine shrimp or blood worms. The other thing is the living space determine the size of goldfishes can grow. I had another two orange one are about the same size in body, but shorter in the fin and tail. But, we only have them about one years time. I will see if I can take another photo of them all together.
Alright, here's the best photo I can take.