I've gotten all 4 of mine at local reptile shops. But I have heard great things about joshsfrogs.com
As a general rule, you really should not mix any species of frogs. Only time ppl have done it is if there enclosure if quite large. Plus I believe the whites get bigger than red eyes


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I am here: http://maps.google.com/maps?ll=44.926654,-93.081282