I would suggest you....look in the section where people sell them, then figure a market average.
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geckorex
3.21 leopard geckos
2.1.1 crested geckos
2.1 bearded dragons
?.?.2 western hognose
0.2 brooksi
0.0?2 grey tree frogs
1.?.1 green anole
2 golden tree frogs
1.2 non-broken cats
0.0? northern 5 lined skink