best advice I can give to anyone is this:

Simply wait until they are big enough to eat one.

Mystra after eating her very first rat (F/T small from Rodentpro)

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1.1.0 Colombian Redtail Boas (normals)
2.1.0 Sumatran Blood Pythons (normals)
1.0 Black Blood Python (normal)
1.0 Dumeril's Boa (normal)
0.1 Coastal Carpet Python (normal)
0.1 Jungle Carpet Python (normal)
0.1 Surinam Redtail Boa (normal)