You're CRB may not be a record size snake, but it sure seems like a healthy one! After talking with others(outside this forum) who have kept CRBs, it seems to me that CRBs just grow very quickly. To give you an idea about how fast they grow, my CRB, Rocky, is slightly over a year old and measures 3.5 feet.

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Scott
Reptiles
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1 Colombian Rainbow Boa (Rocky)
1.0 Ball Python (Sultan)
0.1 California Kingsnake (Leota)
1.0 Eastern Painted Turtle (Yugi)
0.1 Red/Gold Bearded Dragon* (Irwin, R.I.P.)
Other
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1.0 Betta Fish (Tyrone)