They should be at least 300 grams and 3 feet in length. Some corn snakes will reach this size in their second year but usually it's best to wait until their third year.
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Anna

The Zoo
Corns
1.0 Snow - Cornelius
1.1 Ghost(pastel) - Gray Ghost & Pink
1.1 Amel - Parker & Scarlet
0.1 Hypo - Nikko
0.1 Anery - Missy
0.1 Hypo Motley - Cordelia aka Cordy
Boas
0.1 Columbian (BCC) - Bella
Lizards
1.0 Leopard Gecko - Leo
Rats
0.1 Dumbo Agouti - Moon
1.0 Silvered Black - Pluto
1.0 Powder Blue - Corner
0.1 Dumbo Siamese - Lily
Plus the breeders & babies
Cats
1.1 Siamese - Blue & Fiona
0.1 Gray DMS - Druscilla aka Dru
Horses
1.0 Thourghbred (Hunter/Jumper) - Morgan's Majesty aka Cody