Personally I don't like to feed "field plankton" (any feeder insects from outside) I'm sure most of the time it is fine but you never know if you get a bad slug, snail, grasshopper, cricket, worm and it could do your animal harm...
I prefer captive bred insects...at least you know they are safe...if I ever need to order feeders from a new company we always go to check out the operation first...most of the time they are more than happy to show you around...the mice breeder we buy mice from does not let his feeders sit the freezer more than 12 hours before shipping them out...if they go longer than 24 hours in the freezer he either throws them away or discounts them and informs the buyers right away.
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Chris Vanderwees
REPTILE SALES AND INFORMATION
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1.2.0 Bearded Dragons
1.2.0 Green Basilisks
1.1.0 Crested Geckos
1.2.0 Veiled Chameleons
1.1.0 Corn Snakes
1.0.0 Tokay Geckos
0.0.1 California Kingsnakes
2.5.1 Leopard Geckos