As far as differences I can't say. These came fromwow.... real beasts as mentioned above.
I am getting a group of six festae next month as part of my import.. do you have any good info on festae of Ecuador vs those of Peru? ("rio tumbes" are the Peruvian ones)
I've done a lot of searching but what I found was non-definitive.
I got them from a guy who was a biologist for the Catawba valley science center in Hickory NC.Great looking pair, where did you get them? I would be interested in fry....